The audio and visuals are quite nice. The story is simple but is enough for this type of game.
As for the gameplay, the fact that you can have the same roll twice in a row makes the game very repetitive (I don't know if this is a bug or I simply got unlucky but I got a "1" four times in a row and a "6" four times in a row").
The hurtbox of the character is maybe too big (at times, I felt like I shouldn't have died when I did).
Maybe having different levels for each side of the die would fix the repetitive aspect.
Other than that, the character is simple to control and the level design is fine.
The fact that you can save your jumps for other levels doesn't seem to add much to the gameplay though.