Fantastic. awesome idea. You've obviously played Canabalt!
The camera shake when the agents land is -perfect-. It's so jarring when they arrive, haha, and you know instantly no matter where you are in the buildings. I played with sound off the first time, and it was still playable!
I was definitely feeling the rush at points, and the need to try and hack windows instead of going back up to jump, but my one complaint would be that the game was too easy. I completed it on my first try, and was even able to hack an agent for fun before I left :P.
You really have something here though - I'd definitely be looking forward to an expansion! Awesome entry.