- I don't see how the die factors into the game concept - it's literally just aesthetics.
- The game is rather short.
- Small issue: The controls should have been explained not as an ingame object but as something that covers the screen, like your end card.
- Small issue: The walls and the floor are impossible to tell apart because they're both brown.
This feels like you've been learning Unity as you go, starting with no previous experience. In that case, welcome to the club. But please consider getting acquainted with the engine before the game jam starts. Best of luck next time!