Requires latest java plug-in. Available at Java Plug-in page

GRAVITY DEFENDER

By: Matt Klupchak and Dave Mahler

Instructions: Use the arrow keys to move from left to right. The up and down arrow keys will change the angle of the cannon and spacebar will shoot a missile. Clicking the game or pressing 'P' will pause/unpausethe game. Destroy all spaceships and move on to the next level. 6 levels in all!
CAUTION: Friendly fire applies!

Scoring

"Stray" Missile: -5
Cannon struck by a missile: -10
Cannon struck by your own missile: -50
Hitting an enemy missile: 5
Hitting a spaceship: 15
Removing a spaceship: 30
Level Win: (Next Level) x 100
Losing all lives: -100