Player 1 is Mario and Jumps with Up arrow and moves with left and right arrow keys. Player 2 is Luigi and jumps with "W" Key and moves with "a" and "d" keys. Player 3 is Bowser and jumps with "8" (Num Pad) and moves with "4" and "6" (Num Pad). Player 4 is Koopa and jumps with "I" Key and moves with "J" and "L" keys.