I remember back in the last day of Combo Breaker of this year where me and
@ultrayoshi115 were deciding what to play in the arcade room and i suggested that we play something that wasn't playable on Fightcade. And so we saw the Groove on Fight cab being available and decided to play it and immediately fell in love with it.
I would have never thought that we would be able to finally play this game with rollback (THAT IS NOT VIA RETROARCH RATHER LMAO) a few months later but here we are. The fact that this game alongside a few others are finally playable w/rollback is a godsend and, while it does have it's hiccups atm, i am sure they will be ironed out over time.
Basically, please try out the new version of Arkadyzja as this is HELLA promising so far.
(And if y'all need some auto downloaders for the PS1, FBNeo & MAME games then please let me know via DMs so that i can provide you with some JSONs ;)