Nice, fast paced game.
I liked the particles and a lot of the audio. Smashing into stuff at high speed was great. It feels good to go between objects to build momentum. It was pretty "juicy" which was nice.
The only big thing I would change would be it's hard to see where you are when you crash into a wall, because you stop inside it. Other than that, I think levels with varied layouts would let you use the grappling in different ways which would be cool.
Overall, I liked it, and I think with a bit more polish it would be great.