Bought this a while back when it was early access because it looked so amazing and I finally got around to playing it. I have to say, it's highly amusing and entertaining. Of course the first levels are simple, as with any game you have to understand the basics. This actually reminds me of the gifted program IQ testing, being able to predict an outcome many steps ahead (except with much less mouse death). I find some levels incredibly easy and others I rage at and have to walk away from for a few minutes. At one point I was yelling and calling the developers of the game some choice names... all in good fun. I wouldn't exactly compare it to tetris, its about using your pieces wisely, not fitting them together neatly. If you are actually trying to complete all of the goals (all three mice, all the shards) it can be challenging... and I feel for the first mouse, who I have dubbed "bomb squad mouse," for good reason.
-Yes, it is actually challeging if you seek perfection
-No crashes, well made
-I'd call it a brain game, exercising logic, prediction and cause/effect
-Mice. And Schrödinger.
-Is nothing like a phone game in my opinion. And may it never become one.
-May cause shouting at inanimate objects
-Really that's it, except a minor bug. After level 30 or so my game stopped showing "perfect score" at the end of a level, the little TV says 0/3 etc, though the Stats accurately show scores so it's hardly a big deal. If anyone else has encountered this problem and fixed it let me know.
BUY THE GAME.