Aliens are trying to invade earth.
Answer the problem before the aliens reach earth to stay safe.
The higher your score, the harder it gets!
Choose from Normal, Fast, and Fastest modes.
Good luck!
Latest Version
1.11Requires Android
4.0.3 and up
Category
Free Educational GameContent Rating
Everyone · Mild Fantasy Violence
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Flag as inappropriateLast updated on Aug 22, 2016
Minor bug fixes and improvements. Install or update to the newest version to check it out!
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