Cool simple platformer!
I like the dice mechanic that change your moveset and force you to adapt! I think it is a good idea to make all the vortices that roll your dice optionnal. It makes you think about whether or not you want to try your luck to get a higher roll.
I would have like to see bigger differences between numbers, because only the 1 and the 6 feels unique. The others are all kind of the same, but with more or less attack power and jump height.
I like the art, it is simple and effective, and there was some music and sound effects.
Good job :)