Double-click flag. P1: Arrow keys to move/jump, L to kick. (Pros of P1: Jumps higher, runs faster. Cons of P1: slower attack, higher knockback) P2: WAD to move/jump, F to punch. (Pros of P2: Attacks faster, less knockback. Cons of P2: Runs slower, jumps lower. (You can't double jump.)
For the scratch club.