Definitely an interesting concept and a solid game.
I was definitely frustrated with the twin-stick controls, they were so wonky for me that I struggled with the second level and the boss fight. However, I have to admit there was thought put into the gameplay, I liked jumping on the mushrooms and getting higher with every bounce.
The visuals are incredibly strong for this one, the low-poly style works so well here and the overall style is bright and lighthearted. Music is also very cool.
I expect to see more high-quality work from you in the future.