Took me a while to understand the controls. The difference between the low jump height and the high jump height is small enough that I didn't notice it was a thing and only though there was a lag in the inputs. After 2 runs I though the score was bugged and the people were just there to populate the level, I had to check the controls to know. It would have been nice to have some kind of intro or tutorial, or natural progression of the mechanics.
There was no difficulty ramp up, so once I got the hang of the controls, there was nothing to keep me from going on forever. One last nit pick: the gray things sticking out of the buildings look like stuff that would block you but they don't.
The idea is cool, kicking them of the edge :P