It's just like the world is fairly spread out and takes a while to move around but movement doesn't feel all that speedy, especially when carrying a dice.
Rolling a die is pretty finicky considering you need a certain outcome but have no control over it, but this feels like an inherent problem and a lot of jam games have similar issues with this theme.
And stuff like the first platform after the starting area isn't very intuitive on what the dice are doing to affect the platforms and it's easy to think you need to roll the dice on the platform (still not really sure) but the dice is so bouncy it easily falls off and is frustrating.
And trying to do the platforming around the level it's easy to fall off, and the respawn point is far back and makes you walk all the way.
Oh and the mouse cursor isnt locked to the screen so that was annoying as well.
Hopefully that helps you get the idea.