It's not just feet that pose a serious threat to eternal whipping boys the Goombas; tennis balls cause them serious harm too.

Nintendo's new trailer for Mario Tennis Open showcases some of the new special games, from a Super Mario Bros.-inspired romp through World 1-1 and 1-2 to a Super Mario Galaxy face-off against a Luma.

You also get to see a Mii dress up as Mario, if that's your kind of thing.

The game's playable at PAX East this weekend. If you're going, say hi (or "biscuit") to our man Jon Wahlgren.