RPG wise, Lost Odysey, Star Ocean, INfinite Undiscovery. I also reccomend these on Arcade.
TMNT, Ikaruga, Super C and Contra, Super Street Fighter 2 HD Remix, Puzzle Fighter HD Remix, Triggerheart, Beat'n Groovy, Metal Slug 3, Doom, Castlevania SOTN, Megaman 9