Amazon leaks Super Smash Bros Wii U details.

A bunch of new features for the Wii U version of super Smash Bros have been leaked by Amazon. The features can be seen in the retailers description of the game detailing new modes, Amiibo functionality stage creation and a brand new board game mode.

Here is the full product description:

Face off against the biggest roster of Nintendo all-stars ever assembled! Send your rivals flying with powerful attacks to earn all-new customizations and equipment that trick out your fighter’s moves and stats. Then power-up and train intelligent amiibo figures* to take on your friends!

The multiplayer showdown** you know and love is now on the Wii U console! Take on all comers as Mario, Mega Man, Sonic, and more gaming greats. Or tap an amiibo* to the Wii U GamePad controller to train it up by battling with or against it. You can even pit your amiibo against a friends’ to see how your training methods stack up. Whether you’re creating stages on the GamePad, competing in challenges crafted by Master Hand and Crazy Hand, or outwitting your opponents in a brand new board game mode, there’s no doubt that the ultimate Smash Bros. game has arrived.

With a possible Nintendo Direct coming shortly to announce more details on the game it is likely we will find out more about the modes discussed. Until then we can only wait for the game's release date on November 21 for North America and December 5 for Europe.