lol, that's pretty cute. If you had moderate success with the first you should do a few in that theme.... like cubicle tetris (just don't use the name tetris or anything with 'tris' in it for legal purposes, so I hear).
Office space comes to mind and the whole "if you could go ahead and move your desk down to storage locker B that'd be greatttttttttt"
As it is your game made me laugh and shake my head. It's cute and short so it has potential. I haven't ever noticed a decent sized flash game ever really go viral. What I have seen go viral again and again are little flash apps like the penguin baseball/target practice gadgets and quick little easily forgettable diversions. You're hitting somewhere in that realm.
I would say your audience is anyone who has a job and anyone who's seen office space... that's a pretty wide audience. The friday slackers on facebook and twitter are probably going to be your biggest audience. Use the term "Office space" on your landing page that houses your game for extra attention (and other names from the movie, actors, and character names) - discuss the movie a bit perhaps - just don't use any of that content "in" your game.
I guess the same goes for "the office".
Cute animation anyway, I love the way the boss grumbles when he catches you.
Those are a few basic thoughts... this is one of those things you may want to do a paid press release on through Prweb when you're ready just for that extra push. I'd also push (not spam) your game to movie forums - see if you can even get it on imdb forums for related movies/shows without getting in trouble
And then come back here and tell us how it goes.
You might also want to start an email newsletter and let people subscribe on your site (and on twitter, and facebook) and keep them updated on new games you put out. Those diehards will be your 'seeders' in the future after your hopeful success of this first game.