The game is very fun for its simplicity.
The idea of different mushrooms with different powerups is very original, and I love the different paths you can take in the level with different long term rewards (powerups).
What wasn't so good is the sound, which feels kinda repetitive: you should add more variations to the jump sound. And the music in my opinion would fit better if it was more retro-like.
Pretty impressive for a game jam. Good job.