Restart, undo, rewind.... anything!
This game has a lot going for it. Pleasant graphics. Challenging puzzles, but easy to learn. The timed blocks get a little annoying since you usually need time to plan your moves, but it’s really not too bad. What drives me crazy is the lack of an undo button. On top of that, when you die (which will happen a lot) it takes you to the level select area. At least let us restart on the current level.