Who needs stereoscopic 3-D, o r a hinge ? Nintendo's cheaper, flatter 2DS is now a mere $80. It even includes a free digital copy of Mario Kart 7. That's a bargain for a current-generation hand-held, but where should you start your games collection? How about here, with Engadget's favorites. (And remember, the console plays DS games, so there's over 10 years of hits to pick from.) We'd still advise starting with some of the most recent titles, which include animal villages, a particularly weird Zelda title, Square Enix's resurrection of the JRPG and Mario, somewhere, along the way.