Liked it, but a few mentions.
What can I say, it's a great idea and you executed it fairly well. Nifty tricks and animation work.
My one concern is the moment when he finds himself stuck in an alley...the interruption of the music, the cheesy 'blink-blink' sound and the record scratch sound effect were jarring while I was watching. Misplaced in something that was dark and serious. I would suggest not doing stuff like that, just keep the normal music going--don't break the flow.
Can't wait to see the next bit, keep at it.