Instruction: Use the space bar to drop charges.
Only 3 charges are allowed at any given time.
Use the LEFT and RIGHT Arrow keys to move left and right.
Instruction: Move your Mouse to move the gun left and right. Hit the Space Bar to lift up or lower the barel. Finally Left Click to fire the gun. Use the P Key to pause or resume the game.
Instruction: Use your Mouse to point and Left click to shoot and plow 'em down.
For one massive alien kill, shoot down a flying saucer - you'll get 10 at a go. Save the earth from an alien
invason.
