Fun concept! I made it in 11 minutes. The floating platforms were a nice pace change from the earlier sections and helped the game feel fresh the whole time.
I'm curious if hopping the fence from the building ledge was the intended route into the larger area since I wasn't sure I was going the correct way. I'm pretty sure it was intended, I would suggest leaving some indication like one of the credits near the fence because it looks identical to the majority of background scenery. I also had trouble locking my cursor after it unlocked multiple times making it difficult to turn. I had to go pause -> fullscreen -> unpause every time to fix it.