Wow, pretty great work! The music choice is nice, although I think it's a bit too chiptune-y. Also, would've been great if you added something that took the control even more from the player.
I would've loved bigger levels from the start, and I think this would do better as a desktop/stand-alone game with bigger and more detailed textures. I loved the character, and I feel like some more characters, objects and animations along with minor details would be a great addition to this game. Anyway, good stuff, a lot of effort put into it!