The below Mario Hoops 3-on-3 (aka Mario Slam Basketball in Europe) commercial from Japan unveils both Mario as well as Final Fantasy universe characters taking part in the game where powerups mix things up. Locales take you from a normal court to those in Mario Arena, Luigi’s Mansion, Princess Peach’s Castle, Wario’s Factory, DK Jungle, Koopa Troopa Beach, Ice Dome, Bowser’s Castle, Final Fantasy Field, and Dragon Quest Stadium. Since it’s developed by Square Enix for Nintendo DS it has a great character list…
Mario characters: Mario, Luigi, Peach, Daisy, Yoshi, Wario, Waluigi, Toad, Donkey Kong, Diddy Kong, Dixie Kong, Koopa, Koopa Jr, Koopa ParaTroopa, Fly Guy, Birdo & Boo.
Final Fantasy characters: Ninja, White Mage, Black Mage, Moogle & Cactuar.
Control is primarily played with the DS stylus shown below:
The video shows how you actually play the game using the DS’s touch screen and D-pad.
Release dates are: September 11 in the US, November 10 in Europe.
Thanks to Wikipedia for the court names.