Use the arrow keys to control the small blue ball. Try to get to the green square to get to the next level. If you touch the black walls, the level restarts. Press "c" to set checkpoints. You can only set one checkpoint per level, so be careful! Finish the thirteenth level, and the game's over! (If you want to start over again, press the green flag, or get the blue circle to the green square on the level called "You Have Won!")
