Super Smash Bros. for Nintendo 3DS and Wii U

Super Smash Bros. for Nintendo 3DS and Super Smash Bros. for Wii U (colloquially named Super Smash Bros. 4 and abbreviated as SSB4) are the upcoming fourth installments of the Super Smash Bros. series being developed for the Nintendo 3DS and Wii U. It is a sequel to Super Smash Bros. Brawl, in which Sonic made his debut in the series. Like previous games in the series, they are being developed by Sora Ltd. along with Namco Bandai 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 games.

Development
Prior to the official announcement and trailers in 2013, Super Smash Bros. 4 was announced in the E3 during 2011, however, the title name was not known and no information regarding to the game was announced, as Masahiro Sakurai was still developing Kid Icarus: Uprising. He also stated that a Nintendo 3DS version of SSB4 will be released as well, have more changes in SSB4, and also have dual support for the 3DS and the Wii U. Sakurai also wanted to make the gameplay experience better than its predecessors. And after months of development, it was comfired by Nintendo that the first screenshots and a trailer of SSB4 will be show during a 2013 E3 edition of Nintendo Direct.

In the Nintendo Direct of E3 2013, Mega Man from the Mega Man series by Capcom was announced as the guest character of the series (and the third third-Party Character, after Sonic and Solid Snake, to be in a Super Smash Bros. game). They also announced newer characters such as the Villager from the Animal Crossing series and the Wii Fit Trainer from Wii Fit. During a Q&A with Masahiro Sakurai, during the 2013 E3, it was revealed that both games may not come out at the same time. It was also revealed previous characters may not make it due to the Nintendo 3DS's space limitations.

In a Nintendo Direct on October 1, 2013, Sonic the Hedgehog was confirmed to be a playable character,  making this his second appearance in the series since Super Smash Bros. Brawl. Windy Hill from Sonic Lost World is also recognized to be playable as his home stage in the Wii U version, however, there is no announcement if that level will be on the Nintendo 3DS version. It is unlikely, though due to the fact that Sakurai said in a Nintendo Direct in April 2014 that the stages for the Wii U and the Nintendo 3DS would be completely different.

Console Differences and similarties
Due to the hardware capabilites along with other such hardware used in the 3DS and Wii U, there is many differences with alomst everything in the game. Note that the differences shown below may change as the game comes to its final development.
 * The game will be released separately instead of the same day so more time is done to make the game as complete as possible. The 3DS version will be released by the Summer of 2014 and the Wii U version will be released by the Winter of 2014.
 * All of the characters in the game that have returned or are newcomes in the game will be on both of the consoles. However, All of the stages will be different on both versions of the game.
 * Most characters will run at 60 frames per second (fps) on the 3DS version while some of the assist trophies and all of the pokemon (such as charzard) in the 3DS Version will run at 30 fps. All fighters will run smothly but it won't effect gameplay.
 * Both versions will offer online multiplayer by Wi-Fi and on the Wii U, through a LAN Connection using a Wii LAN Adapter.
 * There are two musical pieces on a Stage on the 3DS version while the Wii U version can allow players to use any music from all of the game series in the Game (such as the Sonic Franchise for an example).
 * Smash Run, which is a battle mode where it alows up to 4 players to search in a dungeon with powerups, is an 3DS exclusive and will not be on the Wii U version.

Trivia

 * Super Smash Bros. 4 will be the first Super Smash Bros. game to be released on a handheld system under the name Super Smash Bros. for Nintendo 3DS, as well as the first Super Smash Bros. game to be released on two systems.
 * Many fans speculated that Super Smash Bros. for 3DS and Wii U is the third and final video game for the Nintendo-Sega partnership along with Sonic Lost World and Mario & Sonic at the Sochi 2014 Olympic Winter Games. However, it was revealed by an interview with Aaron Webber that the third Sega-Nintendo Sonic the Hedgehog video game is something "completely different than before." A Facebook comment by the official Sonic the Hedgehog page also confirms that Super Smash Bros. for Nintendo 3DS/Wii U is not the third game from the Nintendo-Sega partnership. It was later revealed that the third game is Sonic Boom.
 * Although it could be a coincidence, both Sonic and Mega Man appear in Super Smash Bros. for 3DS and Wii U, when Archie Comics had recently made a crossover between the two comic franchises, known as Sonic & Mega Man: Worlds Collide.
 * Sonic was revealed in October 2013, the same month that he was confirmed to be in Super Smash Bros. Brawl in 2007.