- App Store Info
DescriptionAn agonizingly difficult puzzle game that forces you to think before every tap. Start on the beginner levels to learn the patterns and then try your luck more than 50 other levels. For the most difficult challenge try the random level generator, which creates a grueling level on the spot.
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 2.0+ Whole new look
+ Faster gameplay