Press space to shoot bullets, use your mouse to aim, Shoot monsters and UFO's, buy different bullet types, collect cash from UFO's and monster's. Chose what time you want it to be Day or Night, press r to reload if you still have ammo in the box, if you have no ammo in the box it will automatically reload for you and enjoy!.
This took a while to make. If there us a glitch and something does not work press the green flag again and if it still does not work tell me in the comments and ill tell you when its fixed.
