Amiibo

Amiibo is a new concept introduced for Super Smash Bros. for Wii U on the gamepad. A player can place an Amiibo figurine on the bottom left side of the gamepad, and the Amiibo will assist his character.

Amiibos have been compared to CPUs, as they both use AI, but Amiibos are much more advanced. During E3 2014, Masahiro Sakurai said that the Amiibos were around "Level 21" and are able to learn from the opponents' attacks and take advantage of their weaknesses, though they will use the same moveset as the character they are modeled after.

Currently, the only Amiibo to be shown is Mario, and it is unknown how many characters will become Amiibos.