Great original game
I thought that the genre of these puzzles was burnt, but from time to time, it appears some new twist that surprise me.
The controls are easy to get used and the difficulty is incremental so you can progress in the first levels without too much problems. Every new level introduce new challenges. Considering that I hate the mind games that force you to think, this game makes it really easy to want to remember the things. The only small thing is that maybe the graphics aren't extremely polished and this fact won't like some people who won't be able to see the awesome fun of the title.