I got my playlist full of Guilty Gear, Last Blade, Ori and The Blind Forest, MGR: Revengeance, Ragnarok Online, Devil May Cry, and miscellaneous stuff. I have some covers in there, too, of game themes like Legend of Zelda and Street Fighter 2 covers.
Tons! I love videogame music and soundtracks/scores in general.
There's obviously classics like the Final Fantasy series, Zelda, etc... But I also very much enjoy the music to Demon's Souls, Silent Hill series, Two Worlds, Killing Floor, Splinter Cell series, Hitman series, etc...
Metal Gear rising Revengeance songs. I absolutely love them, especially since they're not just instrumental soundtracks, they have lyrics as well that relate to the game and to each boss. This one has to be my favorite, allow me to share