Javascript Tetris

Du bist bei Karopapier gerade nicht dran? Dann spiel doch Tetris im vertrauten Look:

Press Space or tap to Play.

score 00000

rows 0

Swipe left/right to move, swipe up to rotate counterclockwise, swipe down to accelerate, tap/click the falling piece to drop it instantly, or tap/click elsewhere to rotate clockwise.

Code is here. Based on Javascript Tetris