The planet is attacked when once more by the aliens. The evil emperor leads his
green aliens to attack all planets he can reach. Now there exists only a single
planet left cost-free. So you have to fight off alien invaders in the final
uncaptured fortress within the galaxy. Try to kill the green monsters. Purchase
upgrades soon after each wave together with the dollars you collect out of your
kills. Attempt to defeat the green monsters. Use your mouse to play this game.
Shoot and kill all this green aliens, wave following wave and attempt to defend
your planet. Use your shooting expertise and give your ideal to win in this
game. Superior luck!
