The idea is pretty nice and so is the bg music. However, i have noticed some aspects of the game that could be improved:
- A title screen is recommended with a minimun tutorial or context of the game, to help the player know what is happening in the game.
- Controls are a bit difficult to understand. I have take some time to actually figure them out, but it's nice that you can find them in-game, so thanks for that.
- It would help if the slime's sprite changed the direction when it's going to the left. In Unity, you can achive that using the same sprite with a new animation in the Animation Controller, using a property of the sprite.
- The tileset looks really cute, but pieces feel a bit messy since they don't fully connect at some parts of the map. You should be careful with this part of the tiling, I know it's the most difficult part.
Congratulations on the game, it's almost impossible to fully polish a game in time for a jam, so don't worry. It's still a nice work!