Super Smash Bros. for Wii U will be playable with Nintendo GameCube controllers, the adapter for which Nintendo revealed today on Twitter.
Nintendo's image shows a breakout box for the Wii U with four GameCube controller ports. The peripheral connects to the console through its front two USB ports. Performance Digital Products announced earlier this month that it would launch a new controller inspired by the GameCube controller.
Nintendo also revealed details about the Super Smash Bros. Invitational, a Wii U tournament to he held June 10 at the Nokia Theater in Los Angeles during E3 2014. Geoff Keighley will host. Press play below to see a new trailer for the tournament, which introduces Nintendo's 16 hand-picked challengers.
"Players will select a single character for the whole tournament from a limited roster through a special draft," the video says. The single-elimination tournament will pit four players against each other with four stock characters in 5-minute matches. The top two players will advance to the next round. For the first through third rounds, items can be on. In the grand finals, items will be off, and the tournament will culminate in a one-on-one finale. Players will be able to use the GameCube controller.
The video also shows a list of the game's playable characters, including an Animal Crossing villager, Bowser, Donkey Kong, Fox McCloud, Greninja, Kirby, Link, Little Mac, Mario, Marth, Mega Man, Pikmin and Olimar, Pit, Rosalina and Luma, Samus, Sonic, Wii Fit Trainer, Zelda, and Zero Suit Samus.
Super Smash Bros. for Wii U is set for a winter 2014 launch, though it will be playable at Best Buy during the week of E3. Its handheld counterpart, Super Smash Bros. for Nintendo 3DS, will be released this summer.