Centipede
Cruisin' Exotica (x2)
DDR In the Groove 2
Golden Tee Fore
Hydro Thunder (x2)
Initial D, Version 3 (x2)
MAME 4-player, custom built
Marvel vs Capcom 2
Megatouch
Multi-fighter cab (6 button jamma with Pandora's Box 4)
Neo Geo 2 slot with Windjammers and 151-1
PGA Tour Challenge
Run and Gun 2
Space Firebird
Speed Up
Steel Gunner 2
Superman
T2
Tron

I also have a 12' shuffleboard, 9' pool table and skeeball.

I plan to get rid of the Initial D3s and the Speed Up and get a Donkey Kong, Atari Tetris and foosball table and my basement barcade will be complete!