Smash Bros. almost wasn't the only Nintendo mascot-fest on the block.
The Wonderful 101 was originally supposed to have a cast consisting largely of Nintendo characters, according to Director Hideki Kamiya.
He said that he "got an order from the president of Platinum Games, Tatsuya Minami, asking [him] to create a game idea that had an all-star cast of Nintendo characters," in addition to other characters that Kamiya didn't specify.
It was after the the project was put on hold and Kamiya returned to it that he decided to use the hero characters now in the game instead of a Nintendo-centric cast.