I love the art style! Very cool!
The "Start" button is a bit hard to press, but I got there eventually.
I think the game plays well and conveys well the idea that you are rolling. The only thing that seems not to fit in with the gameplay is how you completely stop after landing, you should keep your momentum (would make it interesting to speedrun!). I think that you could communicate the fact that there is a wall jump a bit better. Your very first platform requires you to use it, I would add a wall that you need to climb using your wall jump before that so that the player can explore this ability.
I hope you can get enough ratings, your game is fun :)