Neat little game! Best score was 18.
The graphics and audio are simple, but got the job done. It would have been nice to have a custom background rather than the recognizable default Unity scene, but you only have so much time in a game jam. I appreciate you put in the time to add two different modes; the smooth one lets you see multiple faces at once, but takes longer to spin the die.
I will say that an actual D6 always has opposite sides sum to seven, as others have mentioned (four across from three, five across from two). I figured out pretty quick that this die was different, but it would have been nice to be consistent with real dice since it really matters in this game where the positions are.
Beyond that, the gameplay and UI was pretty smooth. I could see a minigame with this premise as part of a larger title. Perhaps with additional challenges for a D8, D12, and D20.
Congrats on making this in 48 hours!