Dance Dance Revolution, hell Rhythm games in general that are not TheaterRhythm. I am also the only one of my circle of RL friends that likes FFXII while they all prefer the awful FFX and XIII.

I also can't get my GF into Final Fantasy no matter how hard I try thanks to douche FF fanboy friends she used to know. On the bright side I did get her addicted to Metal Gear Solid so I guess that's a thing.