Use the Arrow keys or the wasd keys to move. There is a dash ability you can use by pressing space. There is also a special ability that is totally not a glitch that was pretty cool called bounce dashing that if you time it right you can go father. You can also slow down time by holding Q or V. Your mouse can also protect you by deflecting blasts and defeating normal enemies. Dash then jump than dash again Abooshkuin
This doesn't change anything except adding co op and increasing level difficulty p2 movement use the mouse to move and shoot enemy's also p1 can walk on you