I absolutely loved the wall jump mechanic, and that you slide a bit up the wall when jumping at it with speed (not to mention the particles that make it feel like you're grinding up the wall). Great level design as well, making sure there are multiple ways to clear each level.
The movement is a bit too slippery when starting to move, you need a big buildup to generate speed, and the collisions are also a bit weird sometimes.
Very fun game!