I can't express how much I love the somersault animation. Amazing work with that!
The game is also very fun. The graphics, music, and story all fit together so nicely, and I liked most of the level design. There were a few platforms where the jumps felt a bit fiddly (specifically with bumping my head against the bottom of them), which became particularly noticeable in the final bit.
Everything killing you in one hit was a bit frustrating at times, but the quick respawns (and once I saw there were fairly frequent checkpoints) mitigated it.
There's a bit where the player is taught how the falling rocks work, but I learned the wrong lesson there, getting past by standing just in front of them rather than somersaulting past them (presumably because there were enemies in the way), which meant I didn't really understand that I could somersault past them. So it took a moment (after a platforming challenge) to figure it out. (But I did eventually figure it out, so maybe it's fine?).
Anyway, incredible job!