Who doesn't like to kill zombies? Here's my new favorite kill-a-zombie game (listen to the zombie dying sound effect!) on my new favorite flash game site: 1cup1coffee.com
For physics-geeks and general game-play fun-lovers, there's Demolition Dude (love the music!). A little more family-friendly than killing zombies. There's TONS of fun games (read: time wasters) over on the site, so check 'em all out here. Oh, and make sure you tell us what level you got up to on Demolition Dude!