Player 1: WASD to move, F to punch and G to kick Player 2: Arrow keys to move, comma to punch and period to kick Player 3: IJKL keys to move, ; to punch and ' to kick player 4: HBNM to move, C to punch and V to kick down + right + Punch/down + left + punch =Hadouken
idk how but i did it I MADE IT 4 PLAYER MWHAHAHAHA