diff --git a/scene/mode_select.lua b/scene/mode_select.lua
index d495958..b394896 100755
--- a/scene/mode_select.lua
+++ b/scene/mode_select.lua
@@ -39,24 +39,14 @@ end
 function ModeSelectScene:update()
 	switchBGM(nil) -- experimental
 
-	if self.das_up or self.das_down or self.das_left or self.das_right then
+	if self.das_up or self.das_down then
 		self.das = self.das + 1
 	else
 		self.das = 0
 	end
 
 	if self.das >= 15 then
-		local change = 0
-		if self.das_up then
-			change = -1
-		elseif self.das_down then
-			change = 1
-		elseif self.das_left then
-			change = -9
-		elseif self.das_right then
-			change = 9
-		end
-		self:changeOption(change)
+		self:changeOption(self.das_up and -1 or 1)
 		self.das = self.das - 4
 	end
 
@@ -146,26 +136,10 @@ function ModeSelectScene:onInputPress(e)
 		self:changeOption(-1)
 		self.das_up = true
 		self.das_down = nil
-		self.das_left = nil
-		self.das_right = nil
 	elseif e.input == "down" or e.scancode == "down" then
 		self:changeOption(1)
 		self.das_down = true
 		self.das_up = nil
-		self.das_left = nil
-		self.das_right = nil
-	elseif e.input == "left" or e.scancode == "left" then
-		self:changeOption(-9)
-		self.das_left = true
-		self.das_right = nil
-		self.das_up = nil
-		self.das_down = nil
-	elseif e.input == "right" or e.scancode == "right" then
-		self:changeOption(9)
-		self.das_right = true
-		self.das_left = nil
-		self.das_up = nil
-		self.das_down = nil
 	elseif e.input == "left" or e.input == "right" or e.scancode == "left" or e.scancode == "right" then
 		self:switchSelect()
 	elseif e.input == "menu_back" or e.scancode == "delete" or e.scancode == "backspace" then
@@ -180,10 +154,6 @@ function ModeSelectScene:onInputRelease(e)
 		self.das_up = nil
 	elseif e.input == "down" or e.scancode == "down" then
 		self.das_down = nil
-	elseif e.input == "right" or e.scancode == "right" then
-		self.das_right = nil
-	elseif e.input == "left" or e.scancode == "left" then
-		self.das_left = nil
 	elseif e.input then
 		self.secret_inputs[e.input] = false
 	end
@@ -217,4 +187,4 @@ function ModeSelectScene:changeRuleset(rel)
 	self.menu_state.ruleset = Mod1(self.menu_state.ruleset + rel, len)
 end
 
-return ModeSelectScene
+return ModeSelectScene
\ No newline at end of file