I was having a great time with this game, it's got a great concept (Think Super Mario Maker but actively building the level as you go). I got locked out of completing level 21, at least in the way I was trying to do it which totally killed the session for me. When I try to turn big at after the section where you have to get through the space right above a spike, my character glitches out and I can no longer jump.
With that being said, I would have had as much as an issue if the character reset his size after he dies but since he maintains whatever size he dies at it blocks me from going back to where I was, meaning that I had to completely restart the level every time and build my way back only to get hit with the bug again.
I know this was a fairly negative review for the star rating, but I genuinely really enjoyed the game and would love to see more of it with more difficult levels. I more so just wanted to point out some game breaking bugs for what I believe to be a great game.