I like games that make me smile. I don't necessarily need a fancy control method or anything: it just needs to make me smile. It sounds vague, but it's impossible to describe.

One game that makes me smile is Theatrhythm. I love that game. I also really like The World Ends With You, for it's gameplay and it's story and connections. Finally, playing a game with friends make me smile the most. I hardly ever do that!