- App Store Info
DescriptionAn agonizingly difficult puzzle game that forces you to think before every tap. Compete with players around the world to get the least number of taps on each of the 100 levels!
Your progress is always saved so you can quit at any time- you'll be able to come back to the puzzle right where you left it.
How to play:
Tap a tile to invert the color of that tile and all of the adjacent tiles. The goal is to make all of the tiles on the board black.
What's New in Version 3.3+ Added adventurously difficult levels
+ Now there are Game Center Achievements!