Compatible emulators

Synopsis

The entire solar system is under attack by the vicious Gyrusians, and it's up to you to save the day! You'll need to pilot your spaceship to each of nine planets, then eliminate three levels of enemies to rid that planet of Gyrusians. You start the game with a single cannon, but you can get a double cannon after shooting a powered-up satellite. After clearing each planet, there is another bonus stage where additional weapons and bonus points can be collected.

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