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They Came From Planet X!

Play They Came From Planet X! flash game free online on GameHour.Net instantly with no registration and with no installation. Enjoy They Came From Planet X! and many more flash Action games.

Planet X is attacking. Engage, captain!

Galaxy Defense needs your help. Hostile Planet X Alliance marauders have been spotted in the beta sector near base #4432. They came from Planet X and they want to destroy the galaxy! Pilot through the invaders and defend the base from attack. Use the arrow keys to move your ship and the space bar to fire. Purchase upgrades to enhance your fighting power. Now is the time for all good fighters to come to the aid of their galaxy. Do you accept the mission?

  • Action-packed shooter game
  • Many levels to conquer
  • Can you defend the galaxy?

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