Oooo cool game. Loved the music, made the experience very hype. Gameplay clicked as well (though it did take me a hot minute to figure out that colliding the yellow spikes was bad). The only feedback I could give is just on visuals. The player and collectible assets don't really match some of the backgrounds you have. Something about them clash for me personally. Also, the UI feels to me different than the assets, like the assets feel drawn while the UI is very thin and vector-ish. Something about the visuals just feel "disconnected."
Eitherway, fun little game and hope y'all keep it up!