If you haven't yet seen the guys at Mega64.com in action, you're really missing out.
What they do, and do very well, is make parody skits about video games. They'll have a guy walk around in a leather jacket pretending to be Ryo Hazuki from Shenmue, asking people if they want to play a game of lucky hit. Or they'll pretend to be the prince from Katamari Damacy and roll a ball around a crowded parking lot.
Most recently, Mega64 tackled the zombie epic Dead Rising. And, like Mega64's other offerings, the Dead Rising skit is quite funny. See it here.