I know this is a game jam and they tend to not be always polished, but I can see the makings of a good game here. And you know what? I like this game. I genuinely enjoyed playing it. If you were looking for feedback on this, this is what I've got:
It would be nice to have some indication of what the other sides of my dice are, so I can plan my route a bit by trying to maximize the numbers I drop into the spaces.
The graphics are actually more-or-less fine. I think it would benefit from a beautification pass, but they serve the purpose they need to.
The game play is interesting, and this is one of those games where it's definitely easy to pick up, but difficult to master.
Put some gentle background music in.
The sound of the dice dropping into the hole is ok, but it is a bit jarring. Try softening the start of the sound a bit, it feels too crunchy imo.
Overall, nice work, and I like seeing you using the theme without being so on-the-nose with 'dice rolling'. Good job. Hopefully you polish this a bit and update. I would play this more.