The game will explain how to play. To sum it up, in single player, use the arrow eys to move and the space bar to shoot.
The multi-player is a little hard because the bullets move too slow. I am aware of this and am working on it. Leave any problems in the comments and I'll be sure to fix them. Enjoy! Note: Problem with not being able to dodge bullets in multiplayer and problem with first shot in single player have been fixed.
