Very cool little game. I really like your interpretation of the theme and it works very well. I also liked your description on the itch.io page, the variety of controls and the options in your menu. Here are a few inputs from my side which might improve the game:
- Difficulty: I would turn down the difficulty a bit. I know it might be hard for you to believe, as you practiced the game quite a lot while developing and testing it. For somebody new, I think it is quite difficult and I managed to get only about 1 minute of play time. Especially for game jam games, it is important to tune the difficulty all the way down. Most people rating the game will not take a lot of time to get better at it.
- Slime timer: Based on the difficulty mentioned above, the slime timer would not be needed for me. I think the game is difficult enough. However, I think it is a good idea to offer an additional game mode for people who need a challange.
- Platforming mechanics: The movement felt a bit slow sometimes, especially the jumps. For a platformer the movement is the most important thing and I would recommend to spend some time into it to make it very smooth. I found once this video which I think gives a good explanation on some platformer concepts:
Congratulations to a very cool game. I really liked playing it!