There are some annoying collisions in there, as in some parts the ground looks flat because of the Toon Shader, but it's actually not.
Sometimes after I had jumped into the beacon I'd fall off the edge and it would still fade to black and play the death sound. That was confusing and you could only tell which it had registered when the screen faded back in.
It felt really good after collecting a few speed pickups, and the music is great and really suits.