* Mewtwo is available as add-on content. This fighter can only be used once you have purchased and downloaded the required content. Participants in the Super Smash Bros. Club Nintendo Promotion can use their download codes to download Mewtwo from April 15th 2015. Mewtwo will be available to purchase from April 28th 2015. For more details, please view the " Add-on Content Smashes In! " page.