Right now I'm playing Batman. Jesus Christ that game is hard -- Nintendo Hard. Only the nerdiest can play it. But um, in general, I play Mega Man, Mario, Zelda, Minecraft, Terraria, Elder Scrolls(not Skyrim, my pc can't handle it), derpity derp. I play almost any NES game though. I even beat Silver Surfer! =P
How about you? Which games you like?