Garou: Mark of the Wolves. I thought I didn´t care about fighters anymore but the controls are so spot on I could not help falling in love with both the game and Neo Geo in general.
Seeing as how Garou has been ported to just about everything at this point, I wouldn't say Garou either. The Power Instinct series in general is one of those brushed aside games. I'm not sure if it fits my complete definition of over looked But it Definitely needs more love than it gets. It's a goofy game that's for sure but I wouldn't compare it to Guilty gear. It more like Street Fighter on Crack.