That is not a dedicated machine. It's built from a board that I sold about 5-6 years ago. The dedicated machines are shown below.
http://www.youtube.com/watch?v=PSW0bWoladc
http://www.youtube.com/watch?v=V3ghPbF3fd4
The unit runs on a 3DO based arcade board, with a different encryption than the home 3DO unit. The game is CD based and runs on a custom CD-ROM player. Only between 5-7 units were built. I own two of the larger cabinets, and the guys who run the CAX show have the smaller 'drawer cabinet' style unit.
This information is from an MTV website. "Daria (VO) - Like this thing. Hey, it's a Beavis and Butt-head stand-up arcade game. Only 12 were made, this is #9. You can use it to extort quarters from your friends. Grab the joystick and control Beavis and Butt-head's every movement. (beat) They'd probably like that."
For the last two years, my machine has been running the 'DIE ALIEN SCUM' proto game at the show. DAE runs on the same hardware as B&B, and I just swap the DAE CD into the machine. Usually the CAX guys bring the other one (running B&B), but they did not bring it this year.
Freeze has it's own dedicated cabinet and had never been inside the B&B cabinets.
One of these sold for $7500 at an MTV auction, when the game was new.
Any more questions?