Super Smash Bros. for Nintendo 3DS and Super Smash Bros. for Wii U are fighting video games developed by Sora Ltd. and Bandai Namco Games, with assistance from tri-Crescendo, and published by Nintendo for the Nintendo 3DS and Wii U game consoles. Despite being similarly titled games, even with almost similar content, the two titles are officially considered the fourth and fifth installments, respectively, in the Super Smash Bros. series of games by creator and game director Masahiro Sakurai.
Like the rest of the series, Super Smash Bros. for Nintendo 3DS and Super Smash Bros. for Wii U are non-traditional fighting games where players use different attacks to weaken their opponents and knock them out of an arena. The games are crossover titles that feature characters, items, music, and stages from various Nintendo franchises, including Mario, Donkey Kong, Pokémon, Fire Emblem, Kirby, Metroid, Star Fox, The Legend of Zelda, Kid Icarus, and Animal Crossing among others, as well as from several third-party franchises, including Sega's Sonic the Hedgehog and Bayonetta, Capcom's Mega Man and Street Fighter, Bandai Namco's Pac-Man, and Square Enix's Final Fantasy VII. New features include having up to eight players fighting at a time on the Wii U version, support for Nintendo's line of Amiibo, using custom Miis as playable fighters, post-release downloadable content including additional fighters and stages, and customizable special moves unlockable for every non-DLC character. Some features from previous games in the series were removed, such as the story mode in Brawl.