Click any key or click to fire at the X (Originally just click or space bar) Avoid hitting the shield or you'll lose. X's health increases as the game progresses (added by me) 0 to mute/unmute music (added by me) click the red arrow to change skins (added by me) list of skins: normal energy ball hypno eyeball (follows the mouse-pointer) -LightningCoder- (based on the original creator)
Thanks to the people above