Really cool concept! I liked the visual style and the movement felt pretty satisfying once I started getting the hang of it.
The main thing I struggled with was understanding some of the movement mechanics at first. I completely missed the slide for a while, and placing the temporary platforms consistently took me a few attempts. Once it clicked though, I could definitely see how you could use them for some interesting shortcuts.
I think my biggest issue was that losing momentum can feel pretty punishing, especially around some of the wall-running sections. A little more forgiveness when barely missing a ledge would probably help too.
The AI was funny at first, although I can see the dialogue becoming repetitive after several runs.
Also, reaching the end felt a little abrupt. Even a simple results/demo complete screen would make finishing a run feel much more rewarding.
Overall there is a really solid base here, especially if you expand the levels and give players more opportunities to find faster routes.