Numberfox on 05 July 2014
I'd like to remind everyone that Brawl released with 12 secret fighters, some of which weren't announced publicly by Sakurai until after the game was released (in Japan), which included veterans and new comers alike such as Captain Falcon, Ness, Toon Link, and Wolf. In fact, the majority of the secret fighters were veterans.
Source: http://www.smashbros.com/wii/en_us/characters/index.html
Current Consoles: Gaming PC, Wii U, 3DS
