Press the green flag and then play to play. Arrow keys to move and space to shoot lasers. You are the thing at the bottom. Try to shoot the segments of the centipede. Don't touch it though. The centipede will come down a space early if it touches a mushroom. Mushrooms can be destroyed after hit 4 times. Sorry for all the bugs (pun so intended), and there is only the one centipede; it won't respawn.
