This is a platform type game. You have to get through the levels by avoiding enemy fire and killing enemies. Use the WASD keys to move left and right, crouch, and jump. If you need to jump higher, double-tap W. You can even triple-jump by hitting it three times. If you need to super jump, then press space and W at the same time. Use the mouse to aim and fire your weapon. Go ahead, get in there and kick some serious butt.