I made this local multiplayer game in Processing.

Directions:

Mash buttons to go up in the corresponding boxes.

Getting the target score locks that box for the opponent.

Going over the target score unlocks that box for the opponent.

I added music/sound but not a win condition. (The player with the most green squares at the end wins.) Just have fun mashing keys with a friend. If I broke your keyboard or if you had fun playing, consider donating. That'll help offset the cost of college.