diff --git a/.gitignore b/.gitignore
index f9f5d82..1d4ff14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@ skins/donotupload
 skins/donotupload/*
 ss
 ss/*
-*.sav
\ No newline at end of file
+*.sav
+res/bgm/track*
\ No newline at end of file
diff --git a/res/bgm/ICEFRONT.S3M b/res/bgm/ICEFRONT.S3M
new file mode 100644
index 0000000..d7ac6ef
Binary files /dev/null and b/res/bgm/ICEFRONT.S3M differ
diff --git a/res/bgm/OMNIPHIL.S3M b/res/bgm/OMNIPHIL.S3M
new file mode 100644
index 0000000..2802fe9
Binary files /dev/null and b/res/bgm/OMNIPHIL.S3M differ
diff --git a/res/bgm/data_jack_2nd_version.s3m b/res/bgm/data_jack_2nd_version.s3m
new file mode 100644
index 0000000..5ca5856
Binary files /dev/null and b/res/bgm/data_jack_2nd_version.s3m differ
diff --git a/tetris/components/lifegrid.lua b/tetris/components/lifegrid.lua
new file mode 100644
index 0000000..a917bdc
--- /dev/null
+++ b/tetris/components/lifegrid.lua
@@ -0,0 +1,574 @@
+local Object = require 'libs.classic'
+
+local LifeGrid = Object:extend()
+
+local empty = { skin = "", colour = "" }
+local oob = { skin = "", colour = "" }
+local block = { skin = "2tie", colour = "A" }
+
+function LifeGrid:new(width, height)
+	self.grid = {}
+	self.grid_age = {}
+	self.width = width
+	self.height = height
+	for y = 1, self.height do
+		self.grid[y] = {}
+		self.grid_age[y] = {}
+		for x = 1, self.width do
+			self.grid[y][x] = empty
+			self.grid_age[y][x] = 0
+		end
+	end
+end
+
+function LifeGrid:clear()
+	for y = 1, self.height do
+		for x = 1, self.width do
+			self.grid[y][x] = empty
+			self.grid_age[y][x] = 0
+		end
+	end
+end
+
+function LifeGrid:getCell(x, y)
+	if x < 1 or x > self.width or y > self.height then return oob
+	elseif y < 1 then return empty
+	else return self.grid[y][x]
+	end
+end
+
+function LifeGrid:isOccupied(x, y)
+	return self:getCell(x+1, y+1) ~= empty
+end
+
+function LifeGrid:isRowFull(row)
+	for index, square in pairs(self.grid[row]) do
+		if square == empty then return false end
+	end
+	return true
+end
+
+function LifeGrid:canPlacePiece(piece)
+	if piece.big then
+		return self:canPlaceBigPiece(piece)
+	end
+
+	local offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		local x = piece.position.x + offset.x
+		local y = piece.position.y + offset.y
+		if self:isOccupied(x, y) then
+			return false
+		end
+	end
+	return true
+end
+
+function LifeGrid:canPlaceBigPiece(piece)
+	local offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		local x = piece.position.x + offset.x
+		local y = piece.position.y + offset.y
+		if (
+		   self:isOccupied(x * 2 + 0, y * 2 + 0)
+		or self:isOccupied(x * 2 + 1, y * 2 + 0)
+		or self:isOccupied(x * 2 + 0, y * 2 + 1)
+		or self:isOccupied(x * 2 + 1, y * 2 + 1)
+		) then
+			return false
+		end
+	end
+	return true
+end
+
+function LifeGrid:canPlacePieceInVisibleLifeGrid(piece)
+	if piece.big then
+		return self:canPlaceBigPiece(piece)
+		-- forget canPlaceBigPieceInVisibleLifeGrid for now
+	end
+
+	local offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		local x = piece.position.x + offset.x
+		local y = piece.position.y + offset.y
+		if y < 4 or self:isOccupied(x, y) ~= empty then
+			return false
+		end
+	end
+	return true
+end
+
+function LifeGrid:getClearedRowCount()
+	local count = 0
+	local cleared_row_table = {}
+	for row = 1, self.height do
+		if self:isRowFull(row) then
+			count = count + 1
+			table.insert(cleared_row_table, row)
+		end
+	end
+	return count, cleared_row_table
+end
+
+function LifeGrid:markClearedRows()
+	local block_table = {}
+	for row = 1, self.height do
+		if self:isRowFull(row) then
+			block_table[row] = {}
+			for x = 1, self.width do
+				block_table[row][x] = {
+					skin = self.grid[row][x].skin,
+					colour = self.grid[row][x].colour,
+				}
+				self.grid[row][x] = {
+					skin = self.grid[row][x].skin,
+					colour = "X"
+				}
+				--self.grid_age[row][x] = 0
+			end
+		end
+	end
+	return block_table
+end
+
+function LifeGrid:clearClearedRows()
+	for row = 1, self.height do
+		if self:isRowFull(row) then
+			for above_row = row, 2, -1 do
+				self.grid[above_row] = self.grid[above_row - 1]
+				self.grid_age[above_row] = self.grid_age[above_row - 1]
+			end
+			self.grid[1] = {}
+			self.grid_age[1] = {}
+			for i = 1, self.width do
+				self.grid[1][i] = empty
+				self.grid_age[1][i] = 0
+			end
+		end
+	end
+	return true
+end
+
+function LifeGrid:copyBottomRow()
+	for row = 1, self.height - 1 do
+		self.grid[row] = self.grid[row+1]
+		self.grid_age[row] = self.grid_age[row+1]
+	end
+	self.grid[self.height] = {}
+	self.grid_age[self.height] = {}
+	for i = 1, self.width do
+		self.grid[self.height][i] = (self.grid[self.height - 1][i] == empty) and empty or block
+		self.grid_age[self.height][i] = 0
+	end
+	return true
+end
+
+function LifeGrid:garbageRise(row_vals)
+	for row = 1, self.height - 1 do
+		self.grid[row] = self.grid[row+1]
+		self.grid_age[row] = self.grid_age[row+1]
+	end
+	self.grid[self.height] = {}
+	self.grid_age[self.height] = {}
+	for i = 1, self.width do
+		self.grid[self.height][i] = (row_vals[i] == "e") and empty or block
+		self.grid_age[self.height][i] = 0
+	end
+end
+
+function LifeGrid:clearSpecificRow(row)
+	for col = 1, self.width do
+		self.grid[row][col] = empty
+	end
+end
+
+function LifeGrid:applyPiece(piece)
+	if piece.big then
+		self:applyBigPiece(piece)
+		return
+	end
+	offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		x = piece.position.x + offset.x
+		y = piece.position.y + offset.y
+		if y + 1 > 0 and y < self.height then
+			self.grid[y+1][x+1] = {
+				skin = piece.skin,
+				colour = piece.colour
+			}
+		end
+	end
+end
+
+function LifeGrid:applyBigPiece(piece)
+	offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		x = piece.position.x + offset.x
+		y = piece.position.y + offset.y
+		for a = 1, 2 do
+			for b = 1, 2 do
+				if y*2+a > 0 and y*2 < self.height then
+					self.grid[y*2+a][x*2+b] = {
+						skin = piece.skin,
+						colour = piece.colour
+					}
+				end
+			end
+		end
+	end
+end
+
+function LifeGrid:checkForBravo(cleared_row_count)
+	for i = 0, self.height - 1 - cleared_row_count do
+				for j = 0, self.width - 1 do
+						if self:isOccupied(j, i) then return false end
+				end
+		end
+	return true
+end
+
+function LifeGrid:checkStackHeight()
+	for i = 0, self.height - 1 do
+		for j = 0, self.width - 1 do
+			if self:isOccupied(j, i) then return self.height - i end
+		end
+	end
+	return 0
+end
+
+function LifeGrid:checkSecretGrade()
+	local sgrade = 0
+	for i=23,5,-1 do
+		local validLine = true
+		local emptyCell = 0
+		if i > 13 then
+			emptyCell = 23-i
+		end
+		if i <= 13 then
+			emptyCell = i-5
+		end
+		for j=0,9 do
+			if (not self:isOccupied(j,i) and j ~= emptyCell) or (j == emptyCell and self:isOccupied(j,i)) then
+				validLine = false
+			end
+		end
+		if not self:isOccupied(emptyCell,i-1) then
+			validLine = false
+		end
+		if(validLine) then
+				sgrade = sgrade + 1
+		else
+				return sgrade
+		end
+	end
+	--[[
+	if(sgrade == 0) then return ""
+	elseif(sgrade < 10) then return 10-sgrade
+	elseif(sgrade < 19) then return "S"..(sgrade-9) end
+	return "GM"
+	--]]
+	return sgrade
+end
+
+function LifeGrid:hasGemBlocks()
+	for y = 1, self.height do
+		for x = 1, self.width do
+			if self.grid[y][x].skin == "gem" then
+				return true
+			end
+		end
+	end
+	return false
+end
+
+function LifeGrid:mirror()
+	local new_grid = {}
+	for y = 1, self.height do
+		new_grid[y] = {}
+		for x = 1, self.width do
+			new_grid[y][x] = empty
+		end
+	end
+
+	for y = 1, self.height do
+		for x = 1, self.width do
+			new_grid[y][x] = self.grid[y][self.width + 1 - x]
+		end
+	end
+	self.grid = new_grid
+end
+
+function LifeGrid:applyMap(map)
+	for y, row in pairs(map) do
+		for x, block in pairs(row) do
+			self.grid_age[y][x] = 0
+			self.grid[y][x] = block
+		end
+	end
+end
+
+-- inefficient algorithm for squares
+function LifeGrid:markSquares()
+	-- goes up by 1 for silver, 2 for gold
+	local square_count = 0
+	for i = 1, 2 do
+		for y = 5, self.height - 3 do
+			for x = 1, self.width - 3 do
+				local age_table = {}
+				local age_count = 0
+				local colour_table = {}
+				local is_square = true
+				for j = 0, 3 do
+					for k = 0, 3 do
+						if self.grid[y+j][x+k].skin == "" or self.grid[y+j][x+k].skin == "square" then
+							is_square = false
+						end
+						if age_table[self.grid_age[y+j][x+k]] == nil then
+							age_table[self.grid_age[y+j][x+k]] = 1
+							age_count = age_count + 1
+						else
+							age_table[self.grid_age[y+j][x+k]] = age_table[self.grid_age[y+j][x+k]] + 1
+						end
+						if age_count > 4 or age_table[self.grid_age[y+j][x+k]] > 4 then
+							is_square = false
+						end
+						if not table.contains(colour_table, self.grid[y+j][x+k].colour) then
+							table.insert(colour_table, self.grid[y+j][x+k].colour)
+						end
+					end
+				end
+				if is_square then
+					if i == 1 and #colour_table == 1 then
+						for j = 0, 3 do
+							for k = 0, 3 do
+								self.grid[y+j][x+k].colour = "Y"
+								self.grid[y+j][x+k].skin = "square"
+							end
+						end
+						square_count = square_count + 2
+					elseif i == 2 then
+						for j = 0, 3 do
+							for k = 0, 3 do
+								self.grid[y+j][x+k].colour = "F"
+								self.grid[y+j][x+k].skin = "square"
+							end
+							
+						end
+						square_count = square_count + 1
+					end
+				end
+			end
+		end
+	end
+	return square_count
+end
+
+-- square scan
+function LifeGrid:scanForSquares()
+	local table = {}
+	for row = 1, self.height do
+		local silver = 0
+		local gold = 0
+		for col = 1, self.width do
+			local colour = self.grid[row][col].colour
+			if self.grid[row][col].skin == "square" then
+				if colour == "Y" then gold = gold + 1
+				else silver = silver + 1 end
+			end
+		end
+		table[row] = gold * 2.5 + silver * 1.25
+	end
+	return table
+end
+
+function LifeGrid:update()
+	for y = 1, self.height do
+		for x = 1, self.width do
+			if self.grid[y][x] ~= empty then
+				self.grid_age[y][x] = self.grid_age[y][x] + 1
+			end
+		end
+	end
+end
+
+function LifeGrid:draw()
+	for y = 5, self.height do
+		for x = 1, self.width do
+			if blocks[self.grid[y][x].skin] and
+			blocks[self.grid[y][x].skin][self.grid[y][x].colour] then
+				if self.grid_age[y][x] < 2 then
+					love.graphics.setColor(1, 1, 1, 1)
+					love.graphics.draw(blocks[self.grid[y][x].skin]["F"], 48+x*16, y*16)
+				else
+					if self.grid[y][x].colour == "X" then
+						love.graphics.setColor(0, 0, 0, 0)
+					elseif self.grid[y][x].skin == "bone" then
+						love.graphics.setColor(1, 1, 1, 1)
+					else
+						love.graphics.setColor(0.5, 0.5, 0.5, 1)
+					end
+					love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
+				end
+				if self.grid[y][x].skin ~= "bone" and self.grid[y][x].colour ~= "X" then
+					love.graphics.setColor(0.8, 0.8, 0.8, 1)
+					love.graphics.setLineWidth(1)
+					if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
+						love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
+					end
+					if y < self.height and self.grid[y+1][x] == empty or
+					(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
+						love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
+					end
+					if x > 1 and self.grid[y][x-1] == empty then
+						love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
+					end
+					if x < self.width and self.grid[y][x+1] == empty then
+						love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
+					end
+				end
+			end
+		end
+	end
+end
+
+function LifeGrid:drawOutline()
+	for y = 5, self.height do
+		for x = 1, self.width do
+			if self.grid[y][x] ~= empty and self.grid[y][x].colour ~= "X" then
+				love.graphics.setColor(0.8, 0.8, 0.8, 1)
+				love.graphics.setLineWidth(1)
+				if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
+					love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
+				end
+				if y < self.height and self.grid[y+1][x] == empty or
+				(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
+					love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
+				end
+				if x > 1 and self.grid[y][x-1] == empty then
+					love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
+				end
+				if x < self.width and self.grid[y][x+1] == empty then
+					love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
+				end
+			end
+		end
+	end
+end
+
+function LifeGrid:drawInvisible(opacity_function, garbage_opacity_function, lock_flash, brightness)
+	lock_flash = lock_flash == nil and true or lock_flash
+	brightness = brightness == nil and 0.5 or brightness
+	for y = 5, self.height do
+		for x = 1, self.width do
+			if self.grid[y][x] ~= empty then
+				if self.grid[y][x].colour == "X" then
+					opacity = 0
+				elseif garbage_opacity_function and self.grid[y][x].colour == "A" then
+					opacity = garbage_opacity_function(self.grid_age[y][x])
+				else
+					opacity = opacity_function(self.grid_age[y][x])
+				end
+				love.graphics.setColor(brightness, brightness, brightness, opacity)
+				love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
+				if lock_flash then
+					if opacity > 0 and self.grid[y][x].colour ~= "X" then
+						love.graphics.setColor(0.64, 0.64, 0.64)
+						love.graphics.setLineWidth(1)
+						if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
+							love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
+						end
+						if y < self.height and self.grid[y+1][x] == empty or
+						(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
+							love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
+						end
+						if x > 1 and self.grid[y][x-1] == empty then
+							love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
+						end
+						if x < self.width and self.grid[y][x+1] == empty then
+							love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
+						end
+					end
+				end
+			end
+		end
+	end
+end
+
+function LifeGrid:drawCustom(colour_function, gamestate)
+    --[[
+        colour_function: (game, block, x, y, age) -> (R, G, B, A, outlineA)
+        When called, calls the supplied function on every block passing the block itself as argument
+        as well as coordinates and the grid_age value of the same cell.
+        Should return a RGBA colour for the block, as well as the opacity of the stack outline (0 for no outline).
+        
+        gamestate: the gamemode instance itself to pass in colour_function
+    ]]
+	for y = 5, self.height do
+		for x = 1, self.width do
+            local block = self.grid[y][x]
+			if block ~= empty then
+                local R, G, B, A, outline = colour_function(gamestate, block, x, y, self.grid_age[y][x])
+				if self.grid[y][x].colour == "X" then
+					A = 0
+				end
+				love.graphics.setColor(R, G, B, A)
+				love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
+                if outline > 0 and self.grid[y][x].colour ~= "X" then
+                    love.graphics.setColor(0.64, 0.64, 0.64, outline)
+                    love.graphics.setLineWidth(1)
+                    if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
+						love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
+					end
+					if y < self.height and self.grid[y+1][x] == empty or
+					(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
+						love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
+					end
+					if x > 1 and self.grid[y][x-1] == empty then
+						love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
+					end
+					if x < self.width and self.grid[y][x+1] == empty then
+						love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
+					end
+                end
+			end
+		end
+	end
+end
+
+function LifeGrid:advanceLife()
+	local newgrid = {}
+	local newgrid_age = {}
+	for y = 1, self.height do
+		newgrid[y] = {}
+		newgrid_age[y] = {}
+		for x = 1, self.width do
+			newgrid[y][x] = empty
+			newgrid_age[y][x] = 0
+		end
+	end
+	for y = 1, self.height do
+		for x = 1, self.width do
+			count = 0
+			for dy = -1, 1 do
+				for dx = -1, 1 do
+					if (dy~=0 or dx~=0) and self.grid[dy+y] and self.grid[dy+y][dx+x] and self.grid[dy+y][dx+x] ~= empty then
+						count = count + 1
+					end
+				end
+			end
+			if (count > 1) and (count < 4) then
+				newgrid[y][x] = self.grid[y][x]
+				if (count == 3) and (newgrid[y][x] == empty) then
+					newgrid[y][x] = {
+						skin = "2tie",
+						colour = ({"R", "O", "Y", "G", "B", "C", "M"})[math.random(7)]
+					}
+				end
+			end
+		end
+	end
+	self.grid=newgrid
+	self.grid_age=newgrid_age
+end
+
+return LifeGrid
diff --git a/tetris/components/strategygrid.lua b/tetris/components/strategygrid.lua
new file mode 100644
index 0000000..6c9dadd
--- /dev/null
+++ b/tetris/components/strategygrid.lua
@@ -0,0 +1,562 @@
+local Object = require 'libs.classic'
+
+local StrategyGrid = Object:extend()
+
+local empty = { skin = "", colour = "" }
+local oob = { skin = "", colour = "" }
+local block = { skin = "2tie", colour = "A" }
+
+function StrategyGrid:new(width, height)
+	self.grid = {}
+	self.grid_age = {}
+	self.grid_placements={}
+	self.width = width
+	self.height = height
+	for y = 1, self.height do
+		self.grid[y] = {}
+		self.grid_age[y] = {}
+		self.grid_placements[y] = {}
+		for x = 1, self.width do
+			self.grid[y][x] = empty
+			self.grid_age[y][x] = 0
+			self.grid_placements[y][x] = 0
+		end
+	end
+end
+
+function StrategyGrid:clear()
+	for y = 1, self.height do
+		for x = 1, self.width do
+			self.grid[y][x] = empty
+			self.grid_age[y][x] = 0
+			self.grid_placements[y][x] = 0
+		end
+	end
+end
+
+function StrategyGrid:getCell(x, y)
+	if x < 1 or x > self.width or y > self.height then return oob
+	elseif y < 1 then return empty
+	else return self.grid[y][x]
+	end
+end
+
+function StrategyGrid:isOccupied(x, y)
+	return self:getCell(x+1, y+1) ~= empty
+end
+
+function StrategyGrid:isRowFull(row)
+	for index, square in pairs(self.grid[row]) do
+		if square == empty then return false end
+	end
+	return true
+end
+
+function StrategyGrid:canPlacePiece(piece)
+	if piece.big then
+		return self:canPlaceBigPiece(piece)
+	end
+
+	local offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		local x = piece.position.x + offset.x
+		local y = piece.position.y + offset.y
+		if self:isOccupied(x, y) then
+			return false
+		end
+	end
+	return true
+end
+
+function StrategyGrid:canPlaceBigPiece(piece)
+	local offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		local x = piece.position.x + offset.x
+		local y = piece.position.y + offset.y
+		if (
+		   self:isOccupied(x * 2 + 0, y * 2 + 0)
+		or self:isOccupied(x * 2 + 1, y * 2 + 0)
+		or self:isOccupied(x * 2 + 0, y * 2 + 1)
+		or self:isOccupied(x * 2 + 1, y * 2 + 1)
+		) then
+			return false
+		end
+	end
+	return true
+end
+
+function StrategyGrid:canPlacePieceInVisibleStrategyGrid(piece)
+	if piece.big then
+		return self:canPlaceBigPiece(piece)
+		-- forget canPlaceBigPieceInVisibleStrategyGrid for now
+	end
+
+	local offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		local x = piece.position.x + offset.x
+		local y = piece.position.y + offset.y
+		if y < 4 or self:isOccupied(x, y) ~= empty then
+			return false
+		end
+	end
+	return true
+end
+
+function StrategyGrid:getClearedRowCount()
+	local count = 0
+	local cleared_row_table = {}
+	for row = 1, self.height do
+		if self:isRowFull(row) then
+			count = count + 1
+			table.insert(cleared_row_table, row)
+		end
+	end
+	return count, cleared_row_table
+end
+
+function StrategyGrid:markClearedRows()
+	local block_table = {}
+	for row = 1, self.height do
+		if self:isRowFull(row) then
+			block_table[row] = {}
+			for x = 1, self.width do
+				block_table[row][x] = {
+					skin = self.grid[row][x].skin,
+					colour = self.grid[row][x].colour,
+				}
+				self.grid[row][x] = {
+					skin = self.grid[row][x].skin,
+					colour = "X"
+				}
+				--self.grid_age[row][x] = 0
+				--self.grid_placements[row][x] = 0
+			end
+		end
+	end
+	return block_table
+end
+
+function StrategyGrid:clearClearedRows()
+	for row = 1, self.height do
+		if self:isRowFull(row) then
+			for above_row = row, 2, -1 do
+				self.grid[above_row] = self.grid[above_row - 1]
+				self.grid_age[above_row] = self.grid_age[above_row - 1]
+				self.grid_placements[above_row] = self.grid_placements[above_row - 1]
+			end
+			self.grid[1] = {}
+			self.grid_age[1]={}
+			self.grid_placements[1] = {}
+			for i = 1, self.width do
+				self.grid[1][i] = empty
+				self.grid_age[1][i] = 0
+				self.grid_placements[1][i] = 0
+			end
+		end
+	end
+	return true
+end
+
+function StrategyGrid:copyBottomRow()
+	for row = 1, self.height - 1 do
+		self.grid[row] = self.grid[row+1]
+		self.grid_age[row] = self.grid_age[row+1]
+		self.grid_placements[row] = self.grid_placements[row+1]
+	end
+	self.grid[self.height] = {}
+	self.grid_age[self.height] = {}
+	self.grid_placements[self.height] = {}
+	for i = 1, self.width do
+		self.grid[self.height][i] = (self.grid[self.height - 1][i] == empty) and empty or block
+		self.grid_age[self.height][i] = 0
+		self.grid_placements[self.height][i] = 0
+	end
+	return true
+end
+
+function StrategyGrid:garbageRise(row_vals)
+	for row = 1, self.height - 1 do
+		self.grid[row] = self.grid[row+1]
+		self.grid_age[row] = self.grid_age[row+1]
+		self.grid_placements[row] = self.grid_placements[row+1]
+	end
+	self.grid[self.height] = {}
+	self.grid_age[self.height] = {}
+	self.grid_placements[self.height] = {}
+	for i = 1, self.width do
+		self.grid[self.height][i] = (row_vals[i] == "e") and empty or block
+		self.grid_age[self.height][i] = 0
+		self.grid_placements[self.height][i] = 0
+	end
+end
+
+function StrategyGrid:clearSpecificRow(row)
+	for col = 1, self.width do
+		self.grid[row][col] = empty
+	end
+end
+
+function StrategyGrid:applyPiece(piece)
+	if piece.big then
+		self:applyBigPiece(piece)
+		return
+	end
+	offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		x = piece.position.x + offset.x
+		y = piece.position.y + offset.y
+		if y + 1 > 0 and y < self.height then
+			self.grid[y+1][x+1] = {
+				skin = piece.skin,
+				colour = piece.colour
+			}
+		end
+	end
+end
+
+function StrategyGrid:applyBigPiece(piece)
+	offsets = piece:getBlockOffsets()
+	for index, offset in pairs(offsets) do
+		x = piece.position.x + offset.x
+		y = piece.position.y + offset.y
+		for a = 1, 2 do
+			for b = 1, 2 do
+				if y*2+a > 0 and y*2 < self.height then
+					self.grid[y*2+a][x*2+b] = {
+						skin = piece.skin,
+						colour = piece.colour
+					}
+				end
+			end
+		end
+	end
+end
+
+function StrategyGrid:checkForBravo(cleared_row_count)
+	for i = 0, self.height - 1 - cleared_row_count do
+				for j = 0, self.width - 1 do
+						if self:isOccupied(j, i) then return false end
+				end
+		end
+	return true
+end
+
+function StrategyGrid:checkStackHeight()
+	for i = 0, self.height - 1 do
+		for j = 0, self.width - 1 do
+			if self:isOccupied(j, i) then return self.height - i end
+		end
+	end
+	return 0
+end
+
+function StrategyGrid:checkSecretGrade()
+	local sgrade = 0
+	for i=23,5,-1 do
+		local validLine = true
+		local emptyCell = 0
+		if i > 13 then
+			emptyCell = 23-i
+		end
+		if i <= 13 then
+			emptyCell = i-5
+		end
+		for j=0,9 do
+			if (not self:isOccupied(j,i) and j ~= emptyCell) or (j == emptyCell and self:isOccupied(j,i)) then
+				validLine = false
+			end
+		end
+		if not self:isOccupied(emptyCell,i-1) then
+			validLine = false
+		end
+		if(validLine) then
+				sgrade = sgrade + 1
+		else
+				return sgrade
+		end
+	end
+	--[[
+	if(sgrade == 0) then return ""
+	elseif(sgrade < 10) then return 10-sgrade
+	elseif(sgrade < 19) then return "S"..(sgrade-9) end
+	return "GM"
+	--]]
+	return sgrade
+end
+
+function StrategyGrid:hasGemBlocks()
+	for y = 1, self.height do
+		for x = 1, self.width do
+			if self.grid[y][x].skin == "gem" then
+				return true
+			end
+		end
+	end
+	return false
+end
+
+function StrategyGrid:mirror()
+	local new_grid = {}
+	for y = 1, self.height do
+		new_grid[y] = {}
+		for x = 1, self.width do
+			new_grid[y][x] = empty
+		end
+	end
+
+	for y = 1, self.height do
+		for x = 1, self.width do
+			new_grid[y][x] = self.grid[y][self.width + 1 - x]
+		end
+	end
+	self.grid = new_grid
+end
+
+function StrategyGrid:applyMap(map)
+	for y, row in pairs(map) do
+		for x, block in pairs(row) do
+			self.grid_age[y][x] = 0
+			self.grid[y][x] = block
+		end
+	end
+end
+
+-- inefficient algorithm for squares
+function StrategyGrid:markSquares()
+	-- goes up by 1 for silver, 2 for gold
+	local square_count = 0
+	for i = 1, 2 do
+		for y = 5, self.height - 3 do
+			for x = 1, self.width - 3 do
+				local age_table = {}
+				local age_count = 0
+				local colour_table = {}
+				local is_square = true
+				for j = 0, 3 do
+					for k = 0, 3 do
+						if self.grid[y+j][x+k].skin == "" or self.grid[y+j][x+k].skin == "square" then
+							is_square = false
+						end
+						if age_table[self.grid_age[y+j][x+k]] == nil then
+							age_table[self.grid_age[y+j][x+k]] = 1
+							age_count = age_count + 1
+						else
+							age_table[self.grid_age[y+j][x+k]] = age_table[self.grid_age[y+j][x+k]] + 1
+						end
+						if age_count > 4 or age_table[self.grid_age[y+j][x+k]] > 4 then
+							is_square = false
+						end
+						if not table.contains(colour_table, self.grid[y+j][x+k].colour) then
+							table.insert(colour_table, self.grid[y+j][x+k].colour)
+						end
+					end
+				end
+				if is_square then
+					if i == 1 and #colour_table == 1 then
+						for j = 0, 3 do
+							for k = 0, 3 do
+								self.grid[y+j][x+k].colour = "Y"
+								self.grid[y+j][x+k].skin = "square"
+							end
+						end
+						square_count = square_count + 2
+					elseif i == 2 then
+						for j = 0, 3 do
+							for k = 0, 3 do
+								self.grid[y+j][x+k].colour = "F"
+								self.grid[y+j][x+k].skin = "square"
+							end
+							
+						end
+						square_count = square_count + 1
+					end
+				end
+			end
+		end
+	end
+	return square_count
+end
+
+-- square scan
+function StrategyGrid:scanForSquares()
+	local table = {}
+	for row = 1, self.height do
+		local silver = 0
+		local gold = 0
+		for col = 1, self.width do
+			local colour = self.grid[row][col].colour
+			if self.grid[row][col].skin == "square" then
+				if colour == "Y" then gold = gold + 1
+				else silver = silver + 1 end
+			end
+		end
+		table[row] = gold * 2.5 + silver * 1.25
+	end
+	return table
+end
+
+function StrategyGrid:update()
+	for y = 1, self.height do
+		for x = 1, self.width do
+			if self.grid[y][x] ~= empty then
+				self.grid_age[y][x] = self.grid_age[y][x] + 1
+			end
+		end
+	end
+end
+
+function StrategyGrid:placement()
+	for y = 1, self.height do
+		for x = 1, self.width do
+			if self.grid[y][x] ~= empty then
+				self.grid_placements[y][x] = self.grid_placements[y][x] + 1
+			end
+		end
+	end
+end
+
+function StrategyGrid:draw()
+	for y = 5, self.height do
+		for x = 1, self.width do
+			if blocks[self.grid[y][x].skin] and
+			blocks[self.grid[y][x].skin][self.grid[y][x].colour] then
+				if self.grid_age[y][x] < 2 then
+					love.graphics.setColor(1, 1, 1, 1)
+					love.graphics.draw(blocks[self.grid[y][x].skin]["F"], 48+x*16, y*16)
+				else
+					if self.grid[y][x].colour == "X" then
+						love.graphics.setColor(0, 0, 0, 0)
+					elseif self.grid[y][x].skin == "bone" then
+						love.graphics.setColor(1, 1, 1, 1)
+					else
+						love.graphics.setColor(0.5, 0.5, 0.5, 1)
+					end
+					love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
+				end
+				if self.grid[y][x].skin ~= "bone" and self.grid[y][x].colour ~= "X" then
+					love.graphics.setColor(0.8, 0.8, 0.8, 1)
+					love.graphics.setLineWidth(1)
+					if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
+						love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
+					end
+					if y < self.height and self.grid[y+1][x] == empty or
+					(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
+						love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
+					end
+					if x > 1 and self.grid[y][x-1] == empty then
+						love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
+					end
+					if x < self.width and self.grid[y][x+1] == empty then
+						love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
+					end
+				end
+			end
+		end
+	end
+end
+
+function StrategyGrid:drawOutline()
+	for y = 5, self.height do
+		for x = 1, self.width do
+			if self.grid[y][x] ~= empty and self.grid[y][x].colour ~= "X" then
+				love.graphics.setColor(0.8, 0.8, 0.8, 1)
+				love.graphics.setLineWidth(1)
+				if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
+					love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
+				end
+				if y < self.height and self.grid[y+1][x] == empty or
+				(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
+					love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
+				end
+				if x > 1 and self.grid[y][x-1] == empty then
+					love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
+				end
+				if x < self.width and self.grid[y][x+1] == empty then
+					love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
+				end
+			end
+		end
+	end
+end
+
+function StrategyGrid:drawInvisible(opacity_function, garbage_opacity_function, lock_flash, brightness)
+	lock_flash = lock_flash == nil and true or lock_flash
+	brightness = brightness == nil and 0.5 or brightness
+	for y = 5, self.height do
+		for x = 1, self.width do
+			if self.grid[y][x] ~= empty then
+				if self.grid[y][x].colour == "X" then
+					opacity = 0
+				elseif garbage_opacity_function and self.grid[y][x].colour == "A" then
+					opacity = garbage_opacity_function(self.grid_age[y][x], self.grid_placements[y][x])
+				else
+					opacity = opacity_function(self.grid_age[y][x], self.grid_placements[y][x])
+				end
+				love.graphics.setColor(brightness, brightness, brightness, opacity)
+				love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
+				if lock_flash then
+					if opacity > 0 and self.grid[y][x].colour ~= "X" then
+						love.graphics.setColor(0.64, 0.64, 0.64)
+						love.graphics.setLineWidth(1)
+						if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
+							love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
+						end
+						if y < self.height and self.grid[y+1][x] == empty or
+						(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
+							love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
+						end
+						if x > 1 and self.grid[y][x-1] == empty then
+							love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
+						end
+						if x < self.width and self.grid[y][x+1] == empty then
+							love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
+						end
+					end
+				end
+			end
+		end
+	end
+end
+
+function StrategyGrid:drawCustom(colour_function, gamestate)
+    --[[
+        colour_function: (game, block, x, y, age) -> (R, G, B, A, outlineA)
+        When called, calls the supplied function on every block passing the block itself as argument
+        as well as coordinates and the grid_age value of the same cell.
+        Should return a RGBA colour for the block, as well as the opacity of the stack outline (0 for no outline).
+        
+        gamestate: the gamemode instance itself to pass in colour_function
+    ]]
+	for y = 5, self.height do
+		for x = 1, self.width do
+            local block = self.grid[y][x]
+			if block ~= empty then
+                local R, G, B, A, outline = colour_function(gamestate, block, x, y, self.grid_age[y][x])
+				if self.grid[y][x].colour == "X" then
+					A = 0
+				end
+				love.graphics.setColor(R, G, B, A)
+				love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
+                if outline > 0 and self.grid[y][x].colour ~= "X" then
+                    love.graphics.setColor(0.64, 0.64, 0.64, outline)
+                    love.graphics.setLineWidth(1)
+                    if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
+						love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
+					end
+					if y < self.height and self.grid[y+1][x] == empty or
+					(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
+						love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
+					end
+					if x > 1 and self.grid[y][x-1] == empty then
+						love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
+					end
+					if x < self.width and self.grid[y][x+1] == empty then
+						love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
+					end
+                end
+			end
+		end
+	end
+end
+
+return StrategyGrid
diff --git a/tetris/modes/a3plus.lua b/tetris/modes/a3plus.lua
new file mode 100644
index 0000000..102917a
--- /dev/null
+++ b/tetris/modes/a3plus.lua
@@ -0,0 +1,15 @@
+local SurvivalA3Game = require 'tetris.modes.survival_a3'
+
+local A3Plus = SurvivalA3Game:extend()
+
+A3Plus.name = "Survival A3+"
+A3Plus.hash = "A3Plus"
+A3Plus.tagline = "A hardcore version of Survival A3."
+
+function A3Plus:new()
+    A3Plus.super:new()
+    self.next_queue_length = 1
+    self.enable_hold = false
+end
+
+return A3Plus
\ No newline at end of file
diff --git a/tetris/modes/conway_a1.lua b/tetris/modes/conway_a1.lua
new file mode 100644
index 0000000..a3103a5
--- /dev/null
+++ b/tetris/modes/conway_a1.lua
@@ -0,0 +1,257 @@
+require 'funcs'
+
+local GameMode = require 'tetris.modes.gamemode'
+local Piece = require 'tetris.components.piece'
+local LifeGrid = require 'tetris.components.lifegrid'
+
+local History4RollsRandomizer = require 'tetris.randomizers.history_4rolls'
+
+local MarathonA1Game = GameMode:extend()
+
+MarathonA1Game.name = "Conway A1"
+MarathonA1Game.hash = "ConwayA1"
+MarathonA1Game.tagline = "Something isn't right here."
+
+
+
+function MarathonA1Game:new()
+	MarathonA1Game.super:new()
+	self.grid=LifeGrid(10, 24)
+
+	self.life_frames = 0
+	self.roll_frames = 0
+	self.combo = 1
+	self.bravos = 0
+	self.gm_conditions = {
+		level300 = false,
+		level500 = false,
+		level999 = false
+	}
+	self.SGnames = {
+		"9", "8", "7", "6", "5", "4", "3", "2", "1",
+		"S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9",
+		"GM"
+	}
+	
+	self.randomizer = History4RollsRandomizer()
+
+	self.additive_gravity = false
+	self.lock_drop = false
+	self.enable_hard_drop = false
+	self.enable_hold = false
+	self.next_queue_length = 1
+end
+
+function MarathonA1Game:getARE()
+	return 30
+end
+
+function MarathonA1Game:getLineARE()
+	return 27
+end
+
+function MarathonA1Game:getDasLimit()
+	return 15
+end
+
+function MarathonA1Game:getLineClearDelay()
+	return 44
+end
+
+function MarathonA1Game:getLockDelay()
+	return 30
+end
+
+local function getRankForScore(score)
+		if score <	400 then return {rank = "9", next = 400}
+	elseif score <	800 then return {rank = "8", next = 800}
+	elseif score <   1400 then return {rank = "7", next = 1400}
+	elseif score <   2000 then return {rank = "6", next = 2000}
+	elseif score <   3500 then return {rank = "5", next = 3500}
+	elseif score <   5500 then return {rank = "4", next = 5500}
+	elseif score <   8000 then return {rank = "3", next = 8000}
+	elseif score <  12000 then return {rank = "2", next = 12000}
+	elseif score <  16000 then return {rank = "1", next = 16000}
+	elseif score <  22000 then return {rank = "S1", next = 22000}
+	elseif score <  30000 then return {rank = "S2", next = 30000}
+	elseif score <  40000 then return {rank = "S3", next = 40000}
+	elseif score <  52000 then return {rank = "S4", next = 52000}
+	elseif score <  66000 then return {rank = "S5", next = 66000}
+	elseif score <  82000 then return {rank = "S6", next = 82000}
+	elseif score < 100000 then return {rank = "S7", next = 100000}
+	elseif score < 120000 then return {rank = "S8", next = 120000}
+	else return {rank = "S9", next = "???"}
+	end
+end
+
+function MarathonA1Game:getGravity()
+	local level = self.level
+		if (level < 30)  then return 4/256
+	elseif (level < 35)  then return 6/256
+	elseif (level < 40)  then return 8/256
+	elseif (level < 50)  then return 10/256
+	elseif (level < 60)  then return 12/256
+	elseif (level < 70)  then return 16/256
+	elseif (level < 80)  then return 32/256
+	elseif (level < 90)  then return 48/256
+	elseif (level < 100) then return 64/256
+	elseif (level < 120) then return 80/256
+	elseif (level < 140) then return 96/256
+	elseif (level < 160) then return 112/256
+	elseif (level < 170) then return 128/256
+	elseif (level < 200) then return 144/256
+	elseif (level < 220) then return 4/256
+	elseif (level < 230) then return 32/256
+	elseif (level < 233) then return 64/256
+	elseif (level < 236) then return 96/256
+	elseif (level < 239) then return 128/256
+	elseif (level < 243) then return 160/256
+	elseif (level < 247) then return 192/256
+	elseif (level < 251) then return 224/256
+	elseif (level < 300) then return 1
+	elseif (level < 330) then return 2
+	elseif (level < 360) then return 3
+	elseif (level < 400) then return 4
+	elseif (level < 420) then return 5
+	elseif (level < 450) then return 4
+	elseif (level < 500) then return 3
+	else return 20
+	end
+end
+
+function MarathonA1Game:advanceOneFrame()
+	self.life_frames = self.life_frames + 1
+	if self.life_frames >= (620 - math.max(20, math.min(self.level, 500))) then
+		self.life_frames=0
+		self.grid:advanceLife()
+	end
+	if self.clear then
+		self.roll_frames = self.roll_frames + 1
+		if self.roll_frames > 2968 then
+			self.completed = true
+		end
+	elseif self.ready_frames == 0 then
+		self.frames = self.frames + 1
+	end
+	return true
+end
+
+function MarathonA1Game:onPieceEnter()
+	if (self.level % 100 ~= 99 and self.level ~= 998) and not self.clear and self.frames ~= 0 then
+		self.level = self.level + 1
+	end
+end
+
+function MarathonA1Game:onLineClear(cleared_row_count)
+	self:checkGMRequirements(self.level, self.level + cleared_row_count)
+	if not self.clear then
+		local new_level = math.min(self.level + cleared_row_count, 999)
+		if new_level == 999 then
+			self.clear = true
+		end
+		self.level = new_level
+	end
+end
+
+function MarathonA1Game:updateScore(level, drop_bonus, cleared_lines)
+	if not self.clear then
+		if self.grid:checkForBravo(cleared_lines) then
+			self.bravo = 4
+			self.bravos = self.bravos + 1
+		else self.bravo = 1 end
+		if cleared_lines > 0 then
+			self.combo = self.combo + (cleared_lines - 1) * 2
+			self.score = self.score + (
+				(math.ceil((level + cleared_lines) / 4) + drop_bonus) *
+				cleared_lines * self.combo * self.bravo
+			)
+		else
+			self.combo = 1
+		end
+		self.drop_bonus = 0
+	end
+end
+
+function MarathonA1Game:checkGMRequirements(old_level, new_level)
+	if old_level < 300 and new_level >= 300 then
+		if self.score >= 12000 and self.frames <= frameTime(4,15) then
+			self.gm_conditions["level300"] = true
+		end
+	elseif old_level < 500 and new_level >= 500 then
+		if self.score >= 40000 and self.frames <= frameTime(7,30) then
+			self.gm_conditions["level500"] = true
+		end
+	elseif old_level < 999 and new_level >= 999 then
+		if self.score >= 126000 and self.frames <= frameTime(13,30) then
+			self.gm_conditions["level999"] = true
+		end
+	end
+end
+
+function MarathonA1Game:drawLifeGrid()
+	self.grid:draw()
+	if self.piece ~= nil and self.level < 100 then
+		self:drawGhostPiece(ruleset)
+	end
+end
+
+function MarathonA1Game:drawScoringInfo()
+	MarathonA1Game.super.drawScoringInfo(self)
+	love.graphics.setColor(1, 1, 1, 1)
+
+	love.graphics.setFont(font_3x5_2)
+	love.graphics.print(
+		self.das.direction .. " " ..
+		self.das.frames .. " " ..
+		strTrueValues(self.prev_inputs)
+	)
+	love.graphics.printf("NEXT", 64, 40, 40, "left")
+	love.graphics.printf("GRADE", 240, 120, 40, "left")
+	love.graphics.printf("SCORE", 240, 200, 40, "left")
+	love.graphics.printf("NEXT RANK", 240, 260, 90, "left")
+	love.graphics.printf("LEVEL", 240, 320, 40, "left")
+	local sg = self.grid:checkSecretGrade()
+	if sg >= 5 then 
+		love.graphics.printf("SECRET GRADE", 240, 430, 180, "left")
+	end
+
+	if self.bravos > 0 then love.graphics.printf("BRAVO", 300, 120, 40, "left") end
+
+	love.graphics.setFont(font_3x5_3)
+	love.graphics.printf(self.score, 240, 220, 90, "left")
+	if self.gm_conditions["level300"] and self.gm_conditions["level500"] and self.gm_conditions["level999"] then
+		love.graphics.printf("GM", 240, 140, 90, "left")
+	else
+		love.graphics.printf(getRankForScore(self.score).rank, 240, 140, 90, "left")
+	end
+	love.graphics.printf(getRankForScore(self.score).next, 240, 280, 90, "left")
+	love.graphics.printf(self.level, 240, 340, 40, "right")
+	love.graphics.printf(self:getSectionEndLevel(), 240, 370, 40, "right")
+	if sg >= 5 then
+		love.graphics.printf(self.SGnames[sg], 240, 450, 180, "left")
+	end
+	if self.bravos > 0 then love.graphics.printf(self.bravos, 300, 140, 40, "left") end
+	
+	love.graphics.setFont(font_8x11)
+	love.graphics.printf(formatTime(self.frames), 64, 420, 160, "center")
+end
+
+function MarathonA1Game:getSectionEndLevel()
+	if self.level >= 900 then return 999
+	else return math.floor(self.level / 100 + 1) * 100 end
+end
+
+function MarathonA1Game:getBackground()
+	return math.floor(self.level / 100)
+end
+
+function MarathonA1Game:getHighscoreData()
+	return {
+		grade = self.grade,
+		score = self.score,
+		level = self.level,
+		frames = self.frames,
+	}
+end
+
+return MarathonA1Game
diff --git a/tetris/modes/phantom_mania_n2.lua b/tetris/modes/phantom_mania_n2.lua
new file mode 100644
index 0000000..c42800e
--- /dev/null
+++ b/tetris/modes/phantom_mania_n2.lua
@@ -0,0 +1,34 @@
+local SurvivalA3Game = require 'tetris.modes.survival_a3'
+
+local PhantomManiaN2Game = SurvivalA3Game:extend()
+
+PhantomManiaN2Game.name = "Phantom Mania N2"
+PhantomManiaN2Game.hash = "PhantomManiaN2"
+PhantomManiaN2Game.tagline = "As PM1 is to Death, PM2 is to Shirase."
+
+PhantomManiaN2Game.rollOpacityFunction = function(age)
+	if age > 4 then return 0
+	else return 1 - age / 4 end
+end
+
+PhantomManiaN2Game.garbageOpacityFunction = function(age)
+	return age > 4 and 0 or 1
+end
+
+function PhantomManiaN2Game:canDrawLCA()
+    return self.level < 1000 and self.lcd > 0
+end
+
+function PhantomManiaN2Game:drawGrid()
+    if not (self.game_over or self.completed) then
+        self.grid:drawInvisible(
+            self.rollOpacityFunction,
+            self.garbageOpacityFunction,
+            self.level < 1000
+        )
+    elseif self.game_over or self.completed then
+        self.grid:draw()
+    end
+end
+
+return PhantomManiaN2Game
\ No newline at end of file
diff --git a/tetris/modes/phantom_mania_nx.lua b/tetris/modes/phantom_mania_nx.lua
new file mode 100644
index 0000000..c35b8ae
--- /dev/null
+++ b/tetris/modes/phantom_mania_nx.lua
@@ -0,0 +1,371 @@
+local GameMode = require 'tetris.modes.gamemode'
+
+local PhantomManiaNXGame = GameMode:extend()
+
+local History6RollsRandomizer = require 'tetris.randomizers.history_6rolls_35bag'
+
+PhantomManiaNXGame.name = "Phantom Mania NX"
+PhantomManiaNXGame.hash = "PhantomManiaNX"
+PhantomManiaNXGame.tagline = "The ultimate invisible challenge! Can you survive the brutal gimmicks?"
+
+function PhantomManiaNXGame:new()
+	PhantomManiaNXGame.super:new()
+
+	self.grade = 0
+	self.garbage = 0
+	self.roll_frames = 0
+    self.roll_points = 0
+	self.combo = 1
+    self.cools = 0
+    self.last_section_cool = false
+    self.tetrises = 0
+    self.section_tetris = {}
+	self.randomizer = History6RollsRandomizer()
+	
+	self.SGnames = {
+		"S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9",
+		"M1", "M2", "M3", "M4", "M5", "M6", "M7", "M8", "M9",
+		"GM"
+	}
+	
+	self.lock_drop = true
+	self.lock_hard_drop = true
+	self.enable_hold = true
+	self.next_queue_length = 3
+
+	self.coolregret_message = "COOL!!"
+	self.coolregret_timer = 0
+end
+
+function PhantomManiaNXGame:getARE()
+		if self.level < 300 then return 12
+	else return 6 end
+end
+
+function PhantomManiaNXGame:getLineARE()
+		if self.level < 100 then return 8
+	elseif self.level < 200 then return 7
+	elseif self.level < 500 then return 6
+	elseif self.level < 1300 then return 5
+	else return 6 end
+end
+
+function PhantomManiaNXGame:getDasLimit()
+		if self.level < 100 then return 9
+	elseif self.level < 500 then return 7
+	else return 5 end
+end
+
+function PhantomManiaNXGame:getLineClearDelay()
+	if self.level < 1300 then return self:getLineARE() - 2
+	else return 6 end
+end
+
+function PhantomManiaNXGame:getLockDelay()
+        if self.level < 200 then return 18
+	elseif self.level < 300 then return 17
+	elseif self.level < 500 then return 15
+	elseif self.level < 600 then return 13
+	elseif self.level < 1100 then return 12
+	elseif self.level < 1200 then return 10
+	elseif self.level < 1300 then return 8
+	else return 15 end
+end
+
+function PhantomManiaNXGame:getGravity()
+	return 20
+end
+
+function PhantomManiaNXGame:getGarbageLimit()
+        if self.level < 600 then return 20
+	elseif self.level < 700 then return 18
+	elseif self.level < 800 then return 10
+	elseif self.level < 900 then return 9
+	else return 8 end
+end
+
+function PhantomManiaNXGame:getSkin()
+	return self.level >= 1000 and "bone" or "2tie"
+end
+
+function PhantomManiaNXGame:hitTorikan(old_level, new_level)
+	if old_level < 300 and new_level >= 300 and self.frames > frameTime(1,30) then
+		self.level = 300
+		return true
+	end
+    if old_level < 500 and new_level >= 500 and self.frames > frameTime(2,28) then
+		self.level = 500
+		return true
+	end
+    if old_level < 800 and new_level >= 800 and self.frames > frameTime(3,38) then
+		self.level = 800
+		return true
+	end
+	if old_level < 1000 and new_level >= 1000 and self.frames > frameTime(4,56) then
+		self.level = 1000
+		return true
+	end
+	return false
+end
+
+function PhantomManiaNXGame:advanceOneFrame()
+	if self.clear then
+		self.roll_frames = self.roll_frames + 1
+		if self.roll_frames < 0 then
+			if self.roll_frames + 1 == 0 then
+				switchBGM("credit_roll", "gm3")
+				return true
+			end
+			return false
+		elseif self.roll_frames > 3238 then
+			switchBGM(nil)
+			self.completed = true
+		end
+	elseif self.ready_frames == 0 then
+		self.frames = self.frames + 1
+	end
+	return true
+end
+
+function PhantomManiaNXGame:onPieceEnter()
+	if (self.level % 100 ~= 99) and not self.clear and self.frames ~= 0 then
+		self:updateSectionTimes(self.level, self.level + 1)
+        self.level = self.level + 1
+	end
+end
+
+local cleared_row_levels = {1, 2, 4, 6}
+local roll_points = {4, 8, 12, 26}
+local mroll_points = {10, 20, 30, 100}
+
+function PhantomManiaNXGame:qualifiesForGMRoll()
+    for i = 0, 12 do
+        if not self.section_tetris[i] then
+            return false
+        end
+    end
+    return self.cools >= 13 and self.tetrises >= 40
+end
+
+function PhantomManiaNXGame:onLineClear(cleared_row_count)
+	if not self.clear then
+		if cleared_row_count >= 4 then
+            self.tetrises = self.tetrises + 1
+            self.section_tetris[math.floor(self.level / 100)] = true
+        end
+        local new_level = self.level + cleared_row_levels[cleared_row_count]
+		self:updateSectionTimes(self.level, new_level)
+		if new_level >= 1300 or self:hitTorikan(self.level, new_level) then
+			self.clear = true
+			if new_level >= 1300 then
+				self.level = 1300
+				self.grid:clear()
+				self.roll_frames = -150
+			else
+				self.game_over = true
+			end
+		else
+			self.level = math.min(new_level, 1300)
+		end
+		self:advanceBottomRow(-cleared_row_count)
+    else
+        if self:qualifiesForGMRoll() then
+            self.roll_points = self.roll_points + mroll_points[cleared_row_count]
+        else
+            self.roll_points = self.roll_points + roll_points[cleared_row_count]
+        end
+	end
+end
+
+function PhantomManiaNXGame:onPieceLock(piece, cleared_row_count)
+	playSE("lock")
+	if cleared_row_count == 0 then self:advanceBottomRow(1) end
+end
+
+function PhantomManiaNXGame:updateScore(level, drop_bonus, cleared_lines)
+	if not self.clear then
+		if cleared_lines > 0 then
+			self.combo = self.combo + (cleared_lines - 1) * 2
+			self.score = self.score + (
+				(math.ceil((level + cleared_lines) / 4) + drop_bonus) *
+				cleared_lines * self.combo
+			)
+		else
+			self.combo = 1
+		end
+		self.drop_bonus = 0
+	end
+end
+
+local cool_cutoffs = {
+    [0] = frameTime(0,32), frameTime(0,32), frameTime(0,29), frameTime(0,25), frameTime(0,25),
+          frameTime(0,22), frameTime(0,22), frameTime(0,18), frameTime(0,18), frameTime(0,16),
+          frameTime(0,16), frameTime(0,14), frameTime(0,14)
+}
+
+function PhantomManiaNXGame:updateSectionTimes(old_level, new_level)
+    local section_time = self.frames - self.section_start_time
+    if math.floor(old_level / 100) < math.floor(new_level / 100) then
+		table.insert(self.section_times, section_time)
+		self.section_start_time = self.frames
+        if section_time >= frameTime(1,00) then
+            self.last_section_cool = false
+            self.coolregret_message = "REGRET!!"
+			self.coolregret_timer = 300
+            self.grade = self.grade - 1
+        elseif self.last_section_cool then
+			self.cools = self.cools + 1
+        end
+        self.grade = self.grade + 1
+	elseif old_level % 100 < 70 and new_level % 100 >= 70 then
+        local old_section = math.floor(old_level / 100)
+        table.insert(self.secondary_section_times, section_time)
+        if (
+            ((
+                self.last_section_cool and
+                section_time < (
+                    self.secondary_section_times[old_section] + 120
+                )
+            ) or not self.last_section_cool) and
+            section_time <= cool_cutoffs[old_section]
+        ) then
+			self.last_section_cool = true
+            self.coolregret_message = "COOL!!"
+			self.coolregret_timer = 300
+		end
+    end
+end
+
+function PhantomManiaNXGame:advanceBottomRow(dx)
+	if self.level >= 500 and self.level < 1000 then
+		self.garbage = math.max(self.garbage + dx, 0)
+		if self.garbage >= self:getGarbageLimit() then
+			self.grid:copyBottomRow()
+			self.garbage = 0
+		end
+	end
+end
+
+function PhantomManiaNXGame:canDrawLCA()
+    return (
+        self.level < 1000 or (
+            self.level >= 1300 and
+            not self:qualifiesForGMRoll()
+        )
+    ) and self.lcd > 0
+end
+
+PhantomManiaNXGame.rollOpacityFunction = function(age)
+	if age > 4 then return 0
+	else return 1 - age / 4 end
+end
+
+PhantomManiaNXGame.garbageOpacityFunction = function(age)
+	return age > 4 and 0 or 1
+end
+
+function PhantomManiaNXGame:drawGrid()
+    if not (
+        self.game_over or self.completed or
+        (self.level >= 1300 and not self:qualifiesForGMRoll())
+    ) then
+        self.grid:drawInvisible(
+            self.rollOpacityFunction,
+            self.garbageOpacityFunction,
+            self.level < 1000
+        )
+    else
+        self.grid:draw()
+    end
+end
+
+function PhantomManiaNXGame:getBackground()
+	return math.floor(self.level / 100)
+end
+
+function PhantomManiaNXGame:getHighscoreData()
+	return {
+		grade = self:getAggregateGrade(),
+        level = self.level,
+		frames = self.frames,
+	}
+end
+
+function PhantomManiaNXGame:getAggregateGrade()
+    local grade_cap
+    if self:qualifiesForGMRoll() then
+        if self.roll_frames > 3238 then
+            grade_cap = 42
+        else
+            grade_cap = 41
+        end
+    else
+        grade_cap = 26
+    end
+    return math.min(
+        self.grade + self.cools + math.floor(self.roll_points / 100) + (
+            self:qualifiesForGMRoll() and 1 or 0
+        ), grade_cap
+    )
+end
+
+local master_grades = {"M", "MK", "MV", "MO"}
+
+local function getLetterGrade(grade)
+    if grade == 0 then
+        return "1"
+    elseif grade <= 13 then
+        return "S" .. tostring(grade)
+    elseif grade <= 26 then
+        return "M" .. tostring(grade - 13)
+    elseif grade <= 30 then
+        return master_grades[grade - 26]
+    elseif grade <= 41 then
+        return "MM-" .. tostring(grade - 30)
+    else
+        return "GM"
+    end
+end
+
+function PhantomManiaNXGame:drawScoringInfo()
+	PhantomManiaNXGame.super.drawScoringInfo(self)
+
+	love.graphics.setColor(1, 1, 1, 1)
+
+	local text_x = config["side_next"] and 320 or 240
+
+	love.graphics.setFont(font_3x5_2)
+	love.graphics.printf("GRADE", text_x, 120, 40, "left")
+	love.graphics.printf("SCORE", text_x, 200, 40, "left")
+	love.graphics.printf("LEVEL", text_x, 320, 40, "left")
+	local sg = self.grid:checkSecretGrade()
+	if sg >= 5 then 
+		love.graphics.printf("SECRET GRADE", 240, 430, 180, "left")
+	end
+	
+	if(self.coolregret_timer > 0) then
+		love.graphics.printf(self.coolregret_message, 64, 400, 160, "center")
+		self.coolregret_timer = self.coolregret_timer - 1
+	end
+
+	local current_section = math.floor(self.level / 100) + 1
+	self:drawSectionTimesWithSecondary(current_section)
+
+	love.graphics.setFont(font_3x5_3)
+	if self.roll_frames > 3238 then love.graphics.setColor(1, 0.5, 0, 1)
+	elseif self.level >= 1300 then love.graphics.setColor(0, 1, 0, 1) end
+	love.graphics.printf(getLetterGrade(self:getAggregateGrade()), text_x, 140, 90, "left")
+	love.graphics.setColor(1, 1, 1, 1)
+	love.graphics.printf(self.score, text_x, 220, 90, "left")
+	love.graphics.printf(self.level, text_x, 340, 50, "right")
+	if self.clear then
+		love.graphics.printf(self.level, text_x, 370, 50, "right")
+	else
+		love.graphics.printf(math.floor(self.level / 100 + 1) * 100, text_x, 370, 50, "right")
+	end
+	if sg >= 5 then
+		love.graphics.printf(self.SGnames[sg], 240, 450, 180, "left")
+	end
+end
+
+return PhantomManiaNXGame
\ No newline at end of file
diff --git a/tetris/modes/strategy_pf.lua b/tetris/modes/strategy_pf.lua
new file mode 100644
index 0000000..ac6914a
--- /dev/null
+++ b/tetris/modes/strategy_pf.lua
@@ -0,0 +1,225 @@
+require 'funcs'
+
+local GameMode = require 'tetris.modes.gamemode'
+local Piece = require 'tetris.components.piece'
+local Grid = require 'tetris.components.strategygrid'
+
+local MasterOfBags = require 'tetris.randomizers.masterofbags'
+
+local StrategyPFGame = GameMode:extend()
+
+bgm.strategy_pf=
+	{
+		love.audio.newSource("res/bgm/data_jack_2nd_version.s3m", "stream"),
+		love.audio.newSource("res/bgm/OMNIPHIL.s3m", "stream"),
+		love.audio.newSource("res/bgm/ICEFRONT.s3m", "stream"),
+	}
+	
+
+StrategyPFGame.name = "Strategy PF"
+StrategyPFGame.hash = "StrategyPF"
+StrategyPFGame.tagline = "Work with a limited number of pieces to reach the end!"
+
+
+
+function StrategyPFGame:new()
+	StrategyPFGame.super:new()
+	self.grid=Grid(10,24)
+	
+	self.roll_frames = 0
+	self.remaining = 50
+	self.used = 0
+	self.bravos = 0
+	self.roll_lines = 0
+
+	self.Gnames = {
+		"", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX",
+		"X", "XI", "XII", "XIII", "XIV",
+		"M", "M-I", "M-II", "M-III", "M-IV", "M-V", "M-VI", "M-VII", "M-VIII", "M-IX",
+		"GM"
+	}
+	
+	self.randomizer = MasterOfBags()
+
+	self.instant_hard_drop = true
+	self.instant_soft_drop = false
+	self.enable_hard_drop = true
+	self.enable_hold = true
+	self.next_queue_length = 2
+	self.torikan_check = {}
+	self.torikan_penalty = 0
+
+	self.bgmcheck=0
+end
+
+function StrategyPFGame:getRank()
+	local level=self.level
+	local names=self.Gnames
+	return names[math.floor(level/100) + 1 + math.floor(math.min(30, self.roll_lines)/3) - self.torikan_penalty]
+end
+
+function StrategyPFGame:getGravity()
+	return 0
+end
+
+function StrategyPFGame:advanceOneFrame()
+	if self.ready_frames == 0 then
+		self.frames = self.frames + 1
+	end
+	if self.bgmcheck==0 then
+		switchBGM("strategy_pf", 1)
+		self.bgmcheck=1
+	elseif self.bgmcheck==1 then
+		if self.level>980 then
+			fadeoutBGM(180)
+			self.bgmcheck=-1
+		end
+	elseif self.bgmcheck==-1 then
+		if self.level>999 then
+			switchBGM("strategy_pf", 2)
+			self.bgmcheck=2
+		end
+	elseif self.bgmcheck==2 then
+		if self.level>1480 then
+			fadeoutBGM(180)
+			self.bgmcheck=-2
+		end
+	elseif self.bgmcheck==-2 then
+		if self.level>1499 then
+			switchBGM("strategy_pf", 3)
+			self.bgmcheck=3
+		end
+	end
+	processBGMFadeout(1)
+	return true
+end
+
+function StrategyPFGame:onPieceEnter()
+	if (self.level % 100 ~= 99) and not self.clear and self.frames ~= 0 then
+		self.level = self.level + 1
+	end
+	self.remaining = self.remaining - 1
+end
+
+function StrategyPFGame:onPieceLock(piece, cleared_row_count)
+	playSE("lock")
+	if self.remaining==0 and (self.clear or cleared_row_count==0) then
+		self.completed=true
+	end
+	if self.level<1500 then
+		self.used = self.used + 1
+	end
+	self.grid:placement()
+end
+
+function StrategyPFGame:onLineClear(cleared_row_count)
+	if not self.clear then
+		if self.level<1500 then self.remaining = self.remaining + math.ceil(({2, 6, 8, 20})[math.min(4,cleared_row_count)] * (1 - math.min(1000, self.level)/2000)) end
+		local new_level = math.min(self.level + cleared_row_count + math.max(0, (self.remaining - self:getPieceLimit())), 1500)
+		if new_level == 1500 then
+			self.remaining = 100
+			self.clear = true
+		end
+		self.level = new_level
+		if self.level < 1500 then
+			self.remaining = math.min(self.remaining, self:getPieceLimit())
+		end
+		for x=1,6 do
+			if self.level > (899 + x * 100) and not self.torikan_check[x] then
+				if self.used > 70 * math.floor(self.level/100) - 100 then
+					self.level = 900 + 100 * x
+					self.completed = true
+					self.torikan_penalty = 1
+					return
+				end
+				self.torikan_check[x]=true
+			end
+		end
+	else
+		self.roll_lines = self.roll_lines + cleared_row_count
+		if self.roll_lines > 29 then
+			self.completed = true
+		end
+	end
+end
+
+function StrategyPFGame:getPieceLimit()
+	return 100 - math.floor(math.min(1000 , self.level)/20)
+end
+
+StrategyPFGame.rollOpacityFunction = {}
+	
+for x=1, 26 do
+	StrategyPFGame.rollOpacityFunction[x] = function(age, placements)
+		if placements < 27-x or age < 4 then return 1
+		else return 0 end
+	end
+end
+	
+	
+
+function StrategyPFGame:drawGrid()
+	if self.level>999 and not (self.completed or self.game_over) then
+		self.grid:drawInvisible(self.rollOpacityFunction[math.floor(self.level/20)-49], nil, true)
+	else
+		self.grid:draw()
+	end
+end
+
+function StrategyPFGame:drawScoringInfo()
+	love.graphics.setColor(1, 1, 1, 1)
+
+	love.graphics.setFont(font_3x5_2)
+	love.graphics.print(
+		self.das.direction .. " " ..
+		self.das.frames .. " " ..
+		strTrueValues(self.prev_inputs)
+	)
+
+	love.graphics.printf("NEXT", 64, 40, 40, "left")
+	love.graphics.printf("GRADE", 240, 120, 40, "left")
+	love.graphics.printf("REMAINING PIECES", 240, 200, 150, "left")
+	love.graphics.printf("LEVEL", 240, 320, 40, "left")
+	love.graphics.printf("PIECES USED", 64, 420, 160, "left")
+
+	if self.bravos > 0 then love.graphics.printf("BRAVO", 300, 120, 40, "left") end
+
+	love.graphics.setFont(font_3x5_3)
+	love.graphics.printf(self:getRank(), 240, 140, 120, "left")
+	if self.level<1500 then
+		if self.remaining<=25 then
+			love.graphics.setColor(1, 1, 0, 1)
+			if self.remaining<=10 then
+				love.graphics.setColor(1, 0, 0, 1)
+			end
+		end
+		love.graphics.printf(self.remaining.."/"..self:getPieceLimit(), 240, 220, 80, "left")
+		love.graphics.setColor(1, 1, 1, 1)
+	else
+		love.graphics.printf(self.remaining, 240, 220, 80, "left")
+	end
+	
+	love.graphics.printf(self.level, 240, 340, 50, "right")
+	love.graphics.printf(self:getSectionEndLevel(), 240, 370, 50, "right")
+	if self.bravos > 0 then love.graphics.printf(self.bravos, 300, 140, 40, "left") end
+	
+	love.graphics.setFont(font_8x11)
+	love.graphics.printf(self.used, 64, 420, 160, "right")
+end
+
+function StrategyPFGame:getSectionEndLevel()
+	return math.min(1500, math.floor(self.level / 100 + 1) * 100)
+end
+
+function StrategyPFGame:getBackground()
+	return math.floor(self.level / 100)
+end
+
+function StrategyPFGame:getHighscoreData()
+	return {
+		level = self.level,
+		roll_lines = self.roll_lines
+	}
+end
+
+return StrategyPFGame
diff --git a/tetris/modes/survival_gte.lua b/tetris/modes/survival_gte.lua
new file mode 100644
index 0000000..c14dbf3
--- /dev/null
+++ b/tetris/modes/survival_gte.lua
@@ -0,0 +1,99 @@
+local GameMode = require 'tetris.modes.gamemode'
+local Bag7Randomizer = require 'tetris.randomizers.bag7'
+
+local SurvivalGTEGame = GameMode:extend()
+
+SurvivalGTEGame.name = "Survival GTE"
+SurvivalGTEGame.hash = "SurvivalGTE"
+SurvivalGTEGame.tagline = "A well-known Master mode that ramps up in difficulty quickly!"
+
+function SurvivalGTEGame:new()
+    SurvivalGTEGame.super:new()
+
+    self.lock_drop = true
+	self.lock_hard_drop = true
+	self.instant_hard_drop = true
+	self.instant_soft_drop = false
+	self.enable_hold = true
+    self.next_queue_length = 4
+end
+
+function SurvivalGTEGame:getARE() return 6 end
+function SurvivalGTEGame:getLineARE() return 6 end
+function SurvivalGTEGame:getGravity() return 20 end
+function SurvivalGTEGame:getARR() return 2 end
+
+function SurvivalGTEGame:getDasLimit()
+    return math.min(self:getLockDelay() - 2, 10)
+end
+
+function SurvivalGTEGame:getLockDelay()
+        if self.lines < 100 then return 29
+    elseif self.lines < 110 then return 27
+    elseif self.lines < 120 then return 25
+    elseif self.lines < 130 then return 22
+    elseif self.lines < 140 then return 20
+    elseif self.lines < 150 then return 17
+    elseif self.lines < 160 then return 16
+    elseif self.lines < 180 then return 15
+    elseif self.lines < 190 then return 13
+    elseif self.lines < 210 then return 11
+    elseif self.lines < 230 then return 10
+    elseif self.lines < 240 then return 9
+    elseif self.lines < 260 then return 8
+    elseif self.lines < 280 then return 7
+    elseif self.lines < 290 then return 6
+    else return 5 end
+end
+
+function SurvivalGTEGame:getLineClearDelay()
+    return math.max(30 - math.floor(self.lines / 10) * 3, 1)
+end
+
+function SurvivalGTEGame:onLineClear(cleared_row_count)
+    self.lines = math.min(self.lines + cleared_row_count, 300)
+    self.completed = self.lines == 300
+end
+
+function SurvivalGTEGame:advanceOneFrame()
+    if self.ready_frames == 0 then
+        self.frames = self.frames + 1
+    end
+end
+
+function SurvivalGTEGame:getBackground()
+    return math.floor(self.lines / 10) % 20
+end
+
+function SurvivalGTEGame:getHighscoreData()
+    return {
+        lines = self.lines,
+        frames = self.frames
+    }
+end
+
+function SurvivalGTEGame:drawScoringInfo()
+    love.graphics.setColor(1, 1, 1, 1)
+
+	love.graphics.setFont(font_3x5_2)
+	love.graphics.print(
+		self.das.direction .. " " ..
+		self.das.frames .. " " ..
+		strTrueValues(self.prev_inputs)
+	)
+    love.graphics.printf("NEXT", 64, 40, 40, "left")
+    love.graphics.printf("SPEED LEVEL", 240, 280, 160, "left")
+    love.graphics.printf("LINES", 240, 350, 160, "left")
+
+    love.graphics.setFont(font_3x5_3)
+    love.graphics.printf(
+        "M" .. math.min(30, math.floor(self.lines / 10) + 1),
+        240, 300, 160, "left"
+    )
+    love.graphics.printf(self.lines, 240, 370, 160, "left")
+
+    love.graphics.setFont(font_8x11)
+	love.graphics.printf(formatTime(self.frames), 64, 420, 160, "center")
+end
+
+return SurvivalGTEGame
\ No newline at end of file
diff --git a/tetris/randomizers/masterofbags.lua b/tetris/randomizers/masterofbags.lua
new file mode 100644
index 0000000..a3ab2d3
--- /dev/null
+++ b/tetris/randomizers/masterofbags.lua
@@ -0,0 +1,48 @@
+local Randomizer = require 'tetris.randomizers.randomizer'
+
+local MasterOfBags = Randomizer:extend()
+
+function MasterOfBags:initialize()
+	self.history = {"S", "Z", "S", "Z"}
+	self.first = true
+	self.bag={}
+	for x=1,28 do
+		self.bag[x]=({"I", "J", "L", "O", "S", "T", "Z"})[(x-1)%7+1]
+	end
+end
+
+function MasterOfBags:generatePiece()
+	local piece=math.random(({[true]=#self.bag,[false]=#self.bag+1})[#self.bag>14])
+	if piece>#self.bag then
+		self.bag={}
+		for x=1,28 do
+			self.bag[x]=({"I", "J", "L", "O", "S", "T", "Z"})[(x-1)%7+1]
+		end
+		piece=math.random(#self.bag)
+	end
+	for i = 1, 6 do
+		if not inHistory(self.bag[piece], self.history) then
+			break
+		end
+		piece=math.random(#self.bag)
+	end
+	self:updateHistory(self.bag[piece])
+
+	return table.remove(self.bag, piece)
+end
+
+function MasterOfBags:updateHistory(shape)
+	table.remove(self.history, 1)
+	table.insert(self.history, shape)
+end
+
+function inHistory(piece, history)
+	for idx, entry in pairs(history) do
+		if entry == piece then
+			return true
+		end
+	end
+	return false
+end
+
+return MasterOfBags
diff --git a/tetris/rulesets/cambridge-m.lua b/tetris/rulesets/cambridge-m.lua
new file mode 100644
index 0000000..920340a
--- /dev/null
+++ b/tetris/rulesets/cambridge-m.lua
@@ -0,0 +1,18 @@
+local CRS = require 'tetris.rulesets.cambridge'
+
+local CRS_M = CRS:extend()
+
+CRS_M.name = "Cambridge-M"
+CRS_M.hash = "Cambridge-M"
+
+function CRS_M:onPieceMove(piece, grid)
+    CRS.onPieceMove(CRS, piece, grid)
+    piece.lock_delay = 0
+end
+
+function CRS_M:onPieceRotate(piece, grid)
+    CRS.onPieceRotate(CRS, piece, grid)
+    piece.lock_delay = 0
+end
+
+return CRS_M
\ No newline at end of file