I recommend kirby triple deluxe, its fantastic and very cute, the levels are decent size and its quite good. If you do not mind something a bit kiddy, skylanders for the 3ds is not too bad, its a nice platformer type of game. Pokemon x, y, o, a, are all really good games, I am in love with it, I borrowed it and its really fun, I plan on getting it myself. Steel diver is free and addictive, by the creators of star fox and its really good.