As someone else said there where a cd32 arcade. Most cd32 sites has a bit about this (ninjaw).
The first virtual reality machines where a couple of linked a3000s as well.. but that's more of the amiga in an arcade.
Most jamma arcade boards from around that time ran on a 68k motorola as the amiga... shame the cd32 never got more attention.. it prol could have carried most cps games right over. Then again the PC allready did by that time.