I was there on Sat as well. I thought Marble Man sucked.. ditto Beavis and Butthead. Maybe these were never released for a reason.
Akka Arrh, on the other hand, was actually pretty fun. I also really liked Quantum, which I had never had a go at before.
Any of you guys notice the Donkey Kong in the back next to Zeke's Peak had
Donkey Kong 2 ROMs in it? Freaking hard! I only saw a few guys get past the first level, and nobody there, including the guy who wrote the ROMs, could get to the 3rd board. He was just testing it out, he says they're not done yet, and he's working on a 4th level that wasn't ready for testing yet.