Need help on what is needed to play these jamma cart things

[The VGM]

I was browsing ebay and saw this http://cgi.ebay.com/X-men-vs-Street-...QQcmdZViewItem

I always see these going for cheap, so I'd like to know what is needed to play these. I'd probably have to make a supergun or whatever it's called, correct?

[SuperGrafx]

You're going to need the A board to play any of these CPS2 games.
The A board varies depending on region. Think of the B boards as teh carts and the A board as the arcade board (a la Neo Geo MVS)

Then a Supergun will be necessary, so you'll either need to buy or build one.

Problem with CPS2 stuff is that infernal suicide battery problem. That's partially why I never collected those...there are ways to make this suicide free (or you could just replace the battery yourself every 5-10 years provided you're good with soldering).

For more info, go here: http://cps2shock.retrogames.com/

You can buy full kits and partial CPS2 kits from this guy: www.arcadeshock.com