Nicely done. The fact that you managed to do this all by yourself is amazing.
I liked the sensory feedback and sound effects you provided. The dialogue was charming and was my main source of enjoyment, alongside the minigames.
I will say that the text was pretty slow, however. I would have hoped for a skip button. Plus, I feel like the walk speed for the player was slippery and slow. I suspect something went wrong with the delta timing? It made a lot of the platforming very hard, especially with the lack of noticeable coyote timing. The fact that the thin platforms bounced me back inconsistently and disappeared after a few seconds didn’t help much either.
Also, I was confused about a lot of the controls. You did provide a How-To-Play section, but it was a little hard to remember all the information at once.
I did like the minigame/battles. They remind me of Undertale. A bit more feedback when the player is hurt, or some clearer indication of the player’s health, might have helped me understand that flying into the butterflies isn’t a good idea (they didn’t appear to do anything, so I tried testing).
The (presumably) final boss was cool the first time I played. …those, I was confused why I lost due to the lack of feedback. And the erasure of my progress was a bit punishing.