Cool game! I loved the main mechanic, it very much hit me as a 'easy to learn, hard to master' kind of mechanic, which is always really fun and engaging. The sound effects and the animation looked great. I really liked the slow motion effect when you tried to aim for a target, that really helped. When I was getting to high speeds I felt like Spiderman swinging across the screen.
The only issue I encountered was when I got to a high velocity going downwards, I would link to a cube and the link would stretch super far. My velocity wouldn't change in time and I would just faceplant and explode. A very minor thing in an otherwise super fun game!
Overall, a super fun game!