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In Return to Earth hacked unblocked, you will become a Black Ops trained scientist whose mission is to unravel all mysteries and fight off various enemies. You figured out that your home planet was ruined once you have returned to home. You didn’t know what did happen there, so now, you have to find out all and try your hardest to turn everything back to the way it was. Try to defeat all nasty enemies, solve the challenges and survive until the end.
Hack info: Your health never goes down if using key 1, you can toggle your strong shield with key 2, and gain more coins with key 3.
Move with arrow keys, use key A for shooting, key S for running, key D to drop bomb, and key E to rewind.