Really really good game! I love the puzzles in each level, the whole concept of the retracing it's steps block is awesome and makes the puzzles very tricky but rewarding when figured out. The isometric view is aesthetically really pleasing and makes the game look very nice (also reminds of me of bloxors) but it can also make the clicking of spots a bit annoying when it's behind objects. Fun overall and challenging.
Great work!