diff --git a/tetris/rulesets/shirase.lua b/tetris/rulesets/shirase.lua
index 016cef2..9a0952c 100644
--- a/tetris/rulesets/shirase.lua
+++ b/tetris/rulesets/shirase.lua
@@ -4,7 +4,6 @@ local Shirase = SRS:extend()
 
 Shirase.name = "Shirase RS"
 Shirase.hash = "Shirase"
-Shirase.world = false
 
 Shirase.colourscheme = {
     I = "R",
@@ -65,8 +64,4 @@ function Shirase:onPieceDrop(piece) piece.lock_delay = 0 end
 function Shirase:onPieceMove(piece) piece.lock_delay = 0 end
 function Shirase:onPieceRotate(piece) piece.lock_delay = 0 end
 
-function Shirase:getDefaultOrientation()
-    return math.random(4)
-end
-
 return Shirase
\ No newline at end of file