Retro invasion
If you like to shoot things (especially aliens), then you need to play Retro Invasion. Prepare for an onslaught of aliens that come wave after wave! Shoot your way through 100 waves. Shoot spaceships for weapon upgrades like the Atomic Blast or a Laser. Use your mouse to rotate your ship then Left click to shoot. Press Z or click on the Laser button to activate the laser Press X or click on the Atomic Blast button to activate the Atomic Blast ESC to PauseQuit
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