Red tank: arrows + P to shoot Blue Tank: wasd keys + Z to shoot. If you get stuck in a wall or on the edge hold the key opposite of the one which you would move to get out. (if the wall is behind you press the back arrow. If you go into the other player you will get poisoned.
This is a WORK IN PROGRESS! Please inform me on any glitches Credit to me, my sister for testing and a special thanks to a friend, Hayden for inspiration.