Great game, i really enjoyed the chapter by chapter approach and the mechanic is incredibly creative, it reminded me of the game 400 years. I did get stuck on the level with the two dark boxes and the tree leading to spikes(I believe it was the third or fourth level in chap 2). PS minor bug report, when pushing boxes off a ledge hitting X twice in quick succession will push it midair and cause it to bounce on the ground, this can be stopped if another box lands on it.