Definitely. There are loads of multiplayer games ranging across all genres. Lots of great shoot 'em ups and fighting games, but also lots of sports and other types.
Oh, if you are downloading MAME is is worth mentioning that MAME32 has now changed name to MAMEUI and it comes in two versions. MAMEUI32 and MAMEUI64. For 32-bit and 64-bit OSs. And that was the reason for the name change. http://mameui.classicgaming.gamespy.com/
It is also worth downloading the Extras torrent from Pleasuredome too as this includes all of the support files so you can see the screenshots, flyers, cabinets, controls etc of the original machines.
I also recommend you download the History dat file as it is great having the history of each cabinet next to each entry. You can get that from http://www.emulator-zone.com/doc.php/arcade/mame.html plus they have lots of other supporting files and different versions of MAMEUI.