When you press the green flag, the game starts immediately. Player 1 is on the left and Player 2 is on the right side. You can change the background color and the player colors but that's just 4 fun. You (obviously) try to dodge the red falling thing 4 as long as possible. Player 1 plays with the arrow keys, and Player 2 plays with WASD. When someone dies, the ninja who dies disappears and the other ninja can do whatever they want. 12/23/2015: Made time and cloud high scores!