diff --git a/docs/rulesets.md b/docs/rulesets.md
index b558720..ef4a27e 100644
--- a/docs/rulesets.md
+++ b/docs/rulesets.md
@@ -10,16 +10,13 @@ A ruleset consists of the following things:
 
 If you're used to Nullpomino, you may notice a few things missing from that definition. For example, piece previews, hold queues, and randomizers have been moved to being game-specific rules, rather than rules that are changeable with the ruleset you use. Soft and hard drop behaviour is also game-specific now, so that times can be more plausibly compared across rulesets.
 
+There are six rulesets currently supported:
 
-Rotation system
----------------
-A rotation system defines the following things:
- * The block offsets of each piece orientation.
- * The wall or floor kicks that will be attempted for each type of rotation.
+* Cambridge - a ruleset original to Cambridge, used for all custom modes. Supports 180-degree rotations!
 
-There are four rotation systems currently supported:
+* SRS - the rotation system used in the Tetris Guideline games. Supports 180-degree rotations!
+* Ti-SRS - SRS but with no 180-degree rotations.
 
-* Cambridge
-* Classic ARS
-* Ti-ARS
-* SRS
\ No newline at end of file
+* ARS - the rotation system from the original Tetris the Grand Master.
+* Ti-ARS - ARS with floorkicks! From TGM3: Terror Instinct.
+* Ace-ARS - ARS with floorkicks and move reset!
\ No newline at end of file
diff --git a/scene/mode_select.lua b/scene/mode_select.lua
index e97d8e4..68148eb 100644
--- a/scene/mode_select.lua
+++ b/scene/mode_select.lua
@@ -32,10 +32,11 @@ game_modes = {
 
 rulesets = {
 	require 'tetris.rulesets.cambridge',
+	require 'tetris.rulesets.standard',
+	require 'tetris.rulesets.standard_ti',
 	require 'tetris.rulesets.arika',
 	require 'tetris.rulesets.arika_ti',
 	require 'tetris.rulesets.arika_ace',
-	require 'tetris.rulesets.standard_exp',
 	--require 'tetris.rulesets.bonkers',
 	--require 'tetris.rulesets.shirase',
 	--require 'tetris.rulesets.super302',
diff --git a/tetris/modes/gamemode.lua b/tetris/modes/gamemode.lua
index c5d5a15..9b6ec38 100644
--- a/tetris/modes/gamemode.lua
+++ b/tetris/modes/gamemode.lua
@@ -392,8 +392,7 @@ function GameMode:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs) ..
-		self.drop_bonus
+		st(self.prev_inputs)
 	)
 
 	love.graphics.setFont(font_8x11)
@@ -403,7 +402,7 @@ end
 function GameMode:drawSectionTimes(current_section)
 	local section_x = 530
 
-	for section, time in pairs(self.section_times) do
+	for section, time in ipairs(self.section_times) do
 		if section > 0 then
 			love.graphics.printf(formatTime(time), section_x, 40 + 20 * section, 90, "left")
 		end
@@ -412,7 +411,7 @@ function GameMode:drawSectionTimes(current_section)
 	love.graphics.printf(formatTime(self.frames - self.section_start_time), section_x, 40 + 20 * current_section, 90, "left")
 end
 
-function GameMode:drawSectionTimesWithSecondary(current_section)
+function GameMode:drawSectionTimesWithSecondary(current_section, section_colour_function)
 	local section_x = 530
 	local section_secondary_x = 440
 
@@ -423,6 +422,9 @@ function GameMode:drawSectionTimesWithSecondary(current_section)
 	end
 
 	for section, time in pairs(self.secondary_section_times) do
+		if self.section_colour_function then
+			love.graphics.setColor(self:section_colour_function(section))
+		end
 		if section > 0 then
 			love.graphics.printf(formatTime(time), section_secondary_x, 40 + 20 * section, 90, "left")
 		end
diff --git a/tetris/modes/marathon_2020.lua b/tetris/modes/marathon_2020.lua
index 5d49793..7d06f5b 100644
--- a/tetris/modes/marathon_2020.lua
+++ b/tetris/modes/marathon_2020.lua
@@ -323,9 +323,9 @@ function Marathon2020Game:checkClear(level)
 end
 
 function Marathon2020Game:updateSectionTimes(old_level, new_level)
-	function sectionCool()
+	function sectionCool(section)
 		self.section_cool_count = self.section_cool_count + 1
-		self.delay_level = math.min(20, self.delay_level + 1)
+		if section < 10 then self.delay_level = math.min(20, self.delay_level + 1) end
 		table.insert(self.section_status, "cool")
 	end
 
@@ -343,7 +343,7 @@ function Marathon2020Game:updateSectionTimes(old_level, new_level)
 		table.insert(self.section_times, section_time)
 		self.section_start_time = self.frames
 
-		if section > 4 then self.delay_level = math.min(20, self.delay_level + 1) end
+		if section > 5 then self.delay_level = math.min(20, self.delay_level + 1) end
 		self:checkTorikan(section)
 		self:checkClear(new_level)
 
@@ -352,11 +352,11 @@ function Marathon2020Game:updateSectionTimes(old_level, new_level)
 			self.secondary_section_times[section] < self.secondary_section_times[section - 1] + 120 and
 			self.secondary_section_times[section] < cool_cutoffs[section]
 		) then
-			sectionCool()
+			sectionCool(section)
 		elseif self.section_status[section - 1] == "cool" then
 			table.insert(self.section_status, "none")
 		elseif section <= 19 and self.secondary_section_times[section] < cool_cutoffs[section] then
-			sectionCool()
+			sectionCool(section)
 		else
 			table.insert(self.section_status, "none")
 		end
@@ -417,6 +417,14 @@ function Marathon2020Game:drawGrid()
 	end
 end
 
+function Marathon2020Game:sectionColourFunction(section)
+	if self.section_status[section] == "cool" then
+		return { 0, 1, 0, 1 }
+	else
+		return { 1, 1, 1, 1 }
+	end
+end
+
 function Marathon2020Game:drawScoringInfo()
 	Marathon2020Game.super.drawScoringInfo(self)
 
@@ -428,7 +436,7 @@ function Marathon2020Game:drawScoringInfo()
 	love.graphics.printf("GRADE PTS.", text_x, 200, 90, "left")
 	love.graphics.printf("LEVEL", text_x, 320, 40, "left")
 
-	self:drawSectionTimesWithSecondary(current_section)
+	self:drawSectionTimesWithSecondary(current_section, self.sectionColourFunction)
 
 	love.graphics.setFont(font_3x5_3)
 	love.graphics.printf(self:getTotalGrade(), text_x, 120, 90, "left")
diff --git a/tetris/modes/survival_a3.lua b/tetris/modes/survival_a3.lua
index 4a980a0..6619908 100644
--- a/tetris/modes/survival_a3.lua
+++ b/tetris/modes/survival_a3.lua
@@ -132,10 +132,10 @@ function SurvivalA3Game:onLineClear(cleared_row_count)
 		if new_level >= 1300 or self:hitTorikan(self.level, new_level) then
 			if new_level >= 1300 then
 				self.level = 1300
+				self.big_mode = true
 			end
 			self.clear = true
 			self.grid:clear()
-			self.big_mode = true
 			self.roll_frames = -150
 		else
 			self.level = math.min(new_level, 1300)
diff --git a/tetris/modes/survival_ax2.lua b/tetris/modes/survival_ax2.lua
index ca750ed..8086a8c 100644
--- a/tetris/modes/survival_ax2.lua
+++ b/tetris/modes/survival_ax2.lua
@@ -1,6 +1,6 @@
 require 'funcs'
 
-local MarathonAX2 = require 'tetris.modes.marathon_AX2'
+local MarathonAX2 = require 'tetris.modes.marathon_ax2'
 local Piece = require 'tetris.components.piece'
 
 local History6RollsRandomizer = require 'tetris.randomizers.history_6rolls'
diff --git a/tetris/rulesets/standard_exp.lua b/tetris/rulesets/standard.lua
similarity index 100%
rename from tetris/rulesets/standard_exp.lua
rename to tetris/rulesets/standard.lua
diff --git a/tetris/rulesets/standard_ti.lua b/tetris/rulesets/standard_ti.lua
new file mode 100644
index 0000000..605e46f
--- /dev/null
+++ b/tetris/rulesets/standard_ti.lua
@@ -0,0 +1,30 @@
+local Standard = require 'tetris.rulesets.standard'
+
+local SRS = Standard:extend()
+
+SRS.name = "Ti-SRS"
+SRS.hash = "StandardTI"
+
+function SRS:onPieceMove(piece, grid)
+	piece.lock_delay = 0 -- move reset
+	if piece:isDropBlocked(grid) then
+		piece.move_counter = piece.move_counter + 1
+		if piece.move_counter >= 10 then
+			piece.locked = true
+		end
+	end
+end
+
+function SRS:onPieceRotate(piece, grid)
+	piece.lock_delay = 0 -- rotate reset
+	if piece:isDropBlocked(grid) then
+		piece.rotate_counter = piece.rotate_counter + 1
+		if piece.rotate_counter >= 8 then
+			piece.locked = true
+		end
+	end
+end
+
+function SRS:get180RotationValue() return config["reverse_rotate"] and 1 or 3 end
+
+return SRS
\ No newline at end of file