I like the graphics, and that this has a story behind it. The actual platforming felt a bit too frustrating to be fun, though. Gave up after falling all the way down for about the fifth time and deciding I couldn't face waiting for the old bloke to finish his rooftop walk again (I was also getting stuck on the sides of platforms a lot). A longer or more varied song would also be good.
Nice attention to detail though- the little animations (like the character's hair) and the speech bubble are good touches.