Well it's an interesting base for a mario-style platformer, though there's definitely some parts where it's quite weird. Mostly the enemies flying out of nowhere and the spinning of the player definitely mix it up. The art style is interesting, though a bit of an overall mismatch between all the assets.
Plus the issues with the floor tiles repeating at different heights causing some weird tripping. Though it didn't actually impact gameplay that much so it just lead to some visual changes.
Overall a decent attempt at a platformer with some nice background music, though there's definitely a lot of improvements to be made on the character, enemies and overall map.