this was very very cute and well executed! I'm a big Kirby fan and I feel like you did capture the spirit of it well with your puzzles and level design, would love to see it expanded on
I do agree with what's been said prior about the menu being a bit unwieldy, it's frustrating when you get killed by something because you were faffing around with it - some sort of auto-roll/equip would help when interacting with chests and having the real time game pause when you open the menu. But otherwise, it wasn't too hard to pick up and seems pretty solid!
The only other little snag I had was the crate in the snake level snagging on the bridge a bit when I tried to push it across.