The game conveys a great sense of speed. Out of the two mechanics: Wallrunning and Grappling, the Grappling Hook needs some more work...
First the good things about it, there is clear feedback when using it. However, it seems to not translate the momentum fully when letting go, which makes it really inconsistent. Even worse, it seems to ungrapple you after a set amount of time? I think it's way better to let the player be in full control when to let go.
Wallrunning seems to work as you'd expect.
Audio and Visuals are very charming.
Overall, needs some work, but it definitely has potential.