Great game. It is very much like the mario bros series, but with more hazards and no enemies. The thing that really put me off was the lack of checkpoints, making every level much harder. Also, many timed puzzles (or at least segments that you have to do quickly) have single-block jumps, so I hit my head and fall/get killed. It would have been fun to have boss fights that weren't all the same. I also noticed that you timed your puzzles to allow players to take in their surroundings first. That's good, until you die a million times, and then try to rush through the level. Then you die. Besides all that, it is a very fun game that has many secrets. Nice work! If you make another in this series, PLEASE ADD CHECKPOINTS! I cannot stress this enough.