This game's concept and art style look really good! Needing to balance speed and jumping power without going too overboard is a neat idea.
Although I will say that for this sort of concept to work the platforming controls absolutely needs to be pinpoint because of how fast and slippery you can potentially be. In some parts of the game I personally found that I was too slippery at intended rage levels and it resulted in frustration from me.
If you can fine tune that issue though I can see a lot of potential for this game!