Pretty cool concept! In the long term, I think you'll have to decide if you want to make the game more physics-based and possible give players more freedom over the rotation or if you want to decouple the game logic from the physics. In puzzle games, I personally prefer if logic is decoupled from physics, but that's just a matter of personal taste. The UI could also need some polish, but the cube itself looks pretty nice already.

One more thing worth thinking about is giving the player a reason to care for what they do. That could either be turning the ball into some sort of character (see Hamsterball, for example) or add some other kind of story element to help the player connect to the game. I know that puzzle games are the one genre that can almost get away with just being completely abstract, but I still always like if there's some emotional connection that can be made to the game.

A nice twist on the theme! Instead of rolling a die, you are rolling inside the die!

Some feedback: Like hazzpants has said, for a full fletched version of this idea, it would be nice to give the player free control over the rotation. Also the camera controls were a bit confusing when going into free view mode.

Nice! Solid puzzle game idea. Was fun to play! Great job.

Think it'd be more fun if I could control the rotation of the dice more discreetly, rather than at 90deg intervals.

Love how the dice looks, and the rotation animation.

Keep it up guys :)

Within the time constraint it was a great job. The stages have interesting mechanics, have fluid art and sound, and the puzzles are challenging enough.

I don't know if it was just in my case, but here the number of rotations was not visible.

Very cool game, I like the 3d-ness of it. I also like rotations as a score, if you can figure it out in fewer, you're doing better. Very cool game!

You should add the controls to the page description, it took me a while to figure them out.

Took me a little while to figure out how to rotate it, but solid game!