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Rating: 7.7/10 - 2191 votes

They Came From Space: Protect the Earth from cruel alien invaders in this quick-fire, space shooting game of 20 levels for kids and teens . The Earth’s military was unexpectedly caught off-guard during the vacation season, and completely wiped out in a vicious alien attack. You have managed to climb on board the last working defense tank on Earth, and now it’s your turn to take revenge. Go all out to destroy your alien opponents, and soar through the levels in this addicting action-packed game (with realistic anti aircraft artillery sound effects to boot) that requires good hand-eye coordination and reaction speed.

Eliminate these invading ships from outer space, and pick up their deadly weapons. Dodge lethal bombs to pick up essential ammo “dots” to reload your guns, and emergency health packs to survive. Do you think you have what it takes to save the Earth from these malicious extraterrestrial invaders? Good luck “Alien Assassin” we’re counting on you!

How to Play: Use the Left and Right arrow, or the “A” and “D” keys on your computer keyboard to move your tank Left and Right along the bottom of the game screen. Collect ammo, power-ups and new destructive weapons by driving over them. Use the number keys (1-5), to activate your new weapons; The number to activate each gun is displayed in the bottom left corner of your screen.

Use your computer mouse to take aim at the flying alien battleships, and left click your mouse (or press the “1″ key) to fire. You lose 20% of your overall score if you press Esc to give in early, so don’t be a quitter! You get bonus points if you manage to eliminate more than one alien war-craft at a time. Tip: Try not to get too trigger-happy, save your limited ammo and make each shot count. Enjoy!

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