diff --git a/tetris/modes/big_a3.lua b/tetris/modes/big_a3.lua
new file mode 100644
index 0000000..511d260
--- /dev/null
+++ b/tetris/modes/big_a3.lua
@@ -0,0 +1,20 @@
+require 'funcs'
+
+local MarathonA3Game = require 'tetris.modes.marathon_a3'
+
+local BigA3Game = MarathonA3Game:extend()
+
+BigA3Game.name = "Big A3"
+BigA3Game.hash = "BigA3-2"
+BigA3Game.tagline = "placeholder text"
+
+function BigA3Game:new()
+	BigA3Game.super:new()
+	self.big_mode = true
+	local getClearedRowCount = self.grid.getClearedRowCount
+	self.grid.getClearedRowCount = function(self)
+		return getClearedRowCount(self) / 2
+	end
+end
+
+return BigA3Game
\ No newline at end of file