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Protect our planet from UFO invasion. Your mission is to clear the UFO in the Space Voyage Invasion. Use your mouse to aim and click to shoot. You can buy new weapons to help you defending your planet. You can also upgrade them for more power when you earn enough. There are also alien labs available to help you catch more aliens. You will be the hero of our planet. Challenge this fighting game at www.flash-games.net. Enjoy more games here!
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