Thanks for your feedback on this game!
I'm glad you liked the pixel art and how the game feels :3 . I think I talked about the music in a different comment, but I wanted to add it on the last day, but instead I spent few hours fixing bugs (and drawing the end-game train which I'm still not very happy with).
The hitbox of the player is actually similar size as the player sprite, the problem is with the melee mushrooms that have a big damage area that I set early in the development and haven't touched it since :P . I might shrink their damage radius down after the ratings end.