Was at a friend's house and we were just playing random-ass MAME games.
The First Funky Fighter - couldn't figure out how to play the game on MAME (since it uses a giant wack-a-mole button setup), really wanted to because come on how amazing is this?

Rage of the Dragons - never heard of this game before my friend showed it to me. SNK fighter from I assume right before they got bought out by the Koreans or whatever the deal was. Very 90's aesthetic, and a cute 90's raver girl character. Nice graphics too and a tag-team system more like Capcom's Vs games than KOF.
Devil Fish - Shitty Pac-Man clone that we couldn't figure out how to score points
Rabbit - fighting game, released by EA Japan of all things, with oversaturated graphics. Kinda reminiscent of P4 Arena since you summon a "fursona" (i.e. sexy foxes, rabbits, hawks), I think there is a Chinese mythological theme to it as well.
Gals Panic - A Qix clone where you unlock G-rated portraits of anime girls. Last time I was over we played a similar game where you got to pick from a few 90's figureheads (Clinton, Arafat) and you unlocked actual porn, but if you ran out of time the hot pornstar would change into some demonic figure.
Nam '75 - Run and Gun that plays almost like a proto-Sin-and-Punishment. Kinda tough to control (you hold the fire button to aim your gun, otherwise you run left and right as the screen auto-scrolls).
Radar Scope - Nintendo's failed arcade game mostly known for being the game that was converted into Donkey Kong. It's basically Space Invaders with a more 3D perspective.
Pang! - Got pretty addicted to this (also known as Buster Bros). Single-screen arcade action game where you launch a grappling hook up to destroy giant balls that break up into smaller balls. It's simplistic but addicting.