This game was so close to absolute greatness and managed to just fall short in a couple of key areas. To start off with some positives, I actually really loved the interesting spin on the platformer formula here, with the levels that initially seem slapdash with a feel quite similar to that of a kid's playroom with how everything is spread around with what initially seems like reckless abandon. The way this is then revealed to simply be a stage that's designed in such a way that you beat it at various sizes was absolutely ingenious to me, and was one of the big driving forces behind it being so cool. The game is also downright sadistic at points with its difficulty, being practically a heavy precision platformer once you get larger, but unfortunately, this is where one particularly large issue rears its head that singlehandedly made me enjoy this game far less, that being how you respawned from the first stage every time you died. What this ended up doing was making these difficult sections that were already made harder by slightly imprecise controls feel downright annoying at best and awful at worst, because whenever you died, you had to replay this same part that you've already died to so many times, making experimentation on the next screen to figure out the route ill advised, since the punishment is so high. My personal view on how to fix this is simply to make it that once you gain a new part of the soul that makes you bigger, that when you die you go back to the start, but only until you pass that section and then the respawn point is set at the next stage. This would allow the clever design of the levels along with their high difficulty level to be put on full display without compromising the overall enjoyment.
On a separate, far more positive note, the visuals were simple yet very fun and charming, and the music was absolutely excellent, that theme song being genuinely amazing and I just wish there was like, maybe one more track to give it a bit of variety, because it admittedly got slightly repetitive after a while. With all that said, with a rework of the respawns or general difficulty, this would be absolutely excellent, and even as stands, there's certainly a lot to love here.