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All On or Off - Lite

On or Off is a problem. Your problem is: Try to turn on or off the lights to make them all on or off.
Category Price Seller Device
Entertainment Free Qingqi Tong iPhone, iPad, iPod

It's a brain training game. A good game to kill time.
Click on a light to turn on or off vertically and horizontally adjacent lights. When all the lights are same on/off status, you will be enter the next mission.
Don't hesitate,let's play the game.

Reviews

Too hard.
LoveTart

There aren't any instructions.. It is an interesting concept, but maybe a help center or a hint button would make it a bit more effective.