Oy, who in the world are dropping rocks on my face while I'm trying to climb the skyscraper? Then again, I would probably do the same thing if a giant rat was running up a tall building.
Anyways, I had a pretty good time playing the game. I had trouble climbing up the building at first, but then I realized that I can hop off and climb to the other part of the building to shrink in size and cling onto the side of the building again to resume my climb until I reached the top. Great game!