Press and Hold w, a, s ,d for player1. If falling thing was up hold W key A for left S for down D for right For player2 is same but keys using up arrow, left arrow, down arrow and right arrow. If your key was wrong for player1 the it will start sound bonk else it will start sound coin. For player2, the if your key was wrong it will start sound dissconent else it will start sound collect.