Super Smash Bros. for Nintendo 3DS / Wii U

Super Smash Bros. for Nintendo 3DS / Wii U is the upcoming fourth installment of the Super Smash Bros. series being developed for both the Nintendo 3DS and Wii U. Like previous games in the series, it is being developed by Sora Ltd. and directed by Sora Ltd. founder Masahiro Sakurai. On June 2012, it was announced that Sora Ltd. is working alongside Namco Bandai Games in developing the game. In the Nintendo Direct of E3 2013, Mega Man from the Mega Man series by Capcom was announced as the third guest character of the series, after Snake and Sonic from Super Smash Bros. Brawl.

Returning characters

 * Mario
 * Donkey Kong
 * Link
 * Samus
 * Kirby
 * Fox
 * Pikachu - Pikachu appears to be slimmer than in the past installments.
 * Bowser - Bowser has a more upright stance and his running speed and attacks are faster.
 * Pit

New characters

 * Villager
 * Mega Man
 * Wii Fit Trainer

Stages
According to series creator Masahiro Sakurai, the 3DS version of the game is going to feature more stages based on games for Nintendo handhelds, while the Wii U version is to feature more stages based on console titles.

Nintendo 3DS

 * A stage appearing similar to Battlefield from Super Smash Bros. Brawl.
 * Gerudo Valley, from The Legend of Zelda: Ocarina of Time.
 * A stage on a train, based off of The Legend of Zelda: Spirit Tracks.
 * Arena Ferox, from Fire Emblem: Awakening.
 * A stage taking place over a water area with spiked pillars that rise onto the stage, based on Super Mario 3D Land.
 * A stage based off of Nintendogs.

Wii U

 * A stage similar to Battlefield in Super Smash Bros. Brawl.
 * Skyloft, from The Legend of Zelda: Skyward Sword.
 * A wrestling arena-type stage.
 * A town, based on the Animal Crossing series.
 * A stage featuring Dr. Wily's fortress from the Mega Man series, the fortress itself based on the design seen in Mega Man 2.