First of all, loads of nice art! Especially the knight looks really cool, and all the art fits together super nicely. I really like the concept of the game too, going into different genres. Though I would want to see more action in each gerne, it would probably be too much to ask for in a game jam game. There is already so much stuff you've done. Good job on making the game!
Other things I like:
- Controller support, though the hold west button thingy is a bit counterintuitive
- Space boss fight
- The beanstalk that brings you back to the top of the level is such a satisfying way to end the game
Suggestions:
- The jump might need some tuning. It felt so floaty right now
- I think moving the space level further back, ideally being the last level, would make better sense as a game