I like the music and a lot of the art in this game! The controls felt pretty wonky, the character kept sliding off of edges and sliding down stairs. I'm kind of torn on the map- I like the Zelda 1-style, but I do wish there were some better indications of where I was. Realistically I think the solution to that is more distinct art assets for different parts of the level, which I understand can be hard to justify in a game jam setting.
The real highlight of the game for me was the upgrades. Each one felt like a useful addition to the move set, especially the multi jump. I really liked the changing appearance of the character throughout the game, and I loved seeing all of the creatures floating around my head as I progressed. It's a small thing that added a lot of enjoyment.