I played for quite a bit but might have gotten filtered by the difficulty, as I did not find everything. The game is beautiful and has a great variety of enemies, but is for sure hard. The low health is fine, but unforgiving. It wasn't clear until I grinded for 15 blue coins and bought yellow fruit that my max health was where the little white line is, rather than the entirety of the hp bar, a strange choice as far as ui is concerned. I also didn't realize what filling up the xp bar did until I read a comment here, but I did grind the first left screen a bunch for coin and xp to see what would happen. It's an interesting non-linear game and it has clearly taken great inspiration from games in the genre, so I commend you for that.