If you or your kids are jonesing for something to do this summer but would rather play Super Mario Bros. than go on vacation, Nintendo has your back. It's launching a free Play Nintendo Tour that, as the name implies, gives you a chance to play a range of 3DS games in a kid-friendly environment. On top of getting to try some of Nintendo's better-known titles (ranging from the shiny new Kirby: Planet Robobot to an older title like Mario Kart 7), the 12-stop US tour has contests, photo ops and prizes.