The Pikmin universe (ピクミン, Pikumin) refers to the Super Smash Bros. series' collection of characters, stages, and other properties that hail from the popular Nintendo series of colorful real-time strategy games, Pikmin. The series was personally developed by Nintendo's Shigeru Miyamoto and is one of the Nintendo GameCube's notable standout franchises. The series, which contributed minor content in Super Smash Bros. Melee, was established as a major franchise in Super Smash Bros. Brawl with the inclusion of its main characters, Captain Olimar and the Pikmin, as a playable character entity (registered as "Pikmin & Olimar"), who also made a playable appearance in Super Smash Bros. 4.
 Franchise description
Prior to the launch of the Nintendo GameCube, Shigeru Miyamoto promoted the system's processing power by releasing a tech demo titled "Super Mario 128" at Nintendo's Space World trade show in August 2000, which demonstrated rapid generation techniques in order to display 128 separate Mario models on screen at once. Meanwhile, Miyamoto and his development team worked on an original project, working title "Adam and Eve", that was planned to be a game where one could watch the development and proliferation of two starting characters. Eventually, this idea was found to be far too lacking in interactivity for the player and was scrapped. But then, a completely new aesthetic was brought in and incorporated into a marriage between some of the concepts of Adam and Eve and the technicalities demonstrated by Super Mario 128. The now-familiar Pikmin series' characters, setting, and real-time-strategy gameplay style were introduced to the Nintendo brand with the December 2001 release of Pikmin as a near-launch title for the GameCube. (Incidentally, the name "Pikmin" was derived from Miyamoto's sheepdog, Pikku.)
Pikmin received positive reception, both for its charming aesthetics and characters and for its unique spin on real-time strategy, and quickly earned a devoted fanbase. However, Japanese sales were not enthusiastic after the first week. In an attempt to stimulate sales, the virtual band Strawberry Flower was hired to write and perform an image song featured in Japanese commercials for the game. Ironically, the single, "Ai no Uta" (Song of Love), became incredibly popular and actually outsold the game it advertised, and it most certainly did its part to surge weekly sales of the game itself. This likely helped secure Pikmin's future status as an established Nintendo franchise, and the first sequel, Pikmin 2, was released in August 2004 for the GameCube. It garnered near-universal acclaim from gaming publications and was noted to be a marked improvement over the original in many important regards, and often makes appearances near the top of published lists of the best GameCube games released over the system's lifespan. Despite what had already become a glowing track record for the franchise and its official featuring in 2008's Super Smash Bros. Brawl, though, Pikmin would experience a nine-year hiatus that would only end with the August 2013 release of the third game, Pikmin 3.
The Pikmin games are set on an unknown planet that has been stated by Miyamoto to represent Earth after the extinction of the human race. The player takes control of a visiting astronaut from a tiny, spacefaring species, most famously Captain Olimar, as he explores the littered wilderness, takes command over armies of native plant-like species he dubs Pikmin, and has them secure and bring back important objects to his home base. A cornucopia of hostile wildlife and environmental hazards does not make things easy for him or his followers; oftentimes, he must willingly sacrifice his minions by hurling them at large enemies so that they whittle the enemies' health down, and must rely on the harvesting of enemy carcasses (and naturally-occurring pellets) to resow his Pikmin and pluck them up to replenish his standing forces. The different colors of Pikmin lend themselves to different on-the-spot battle strategies, and are also important to solving puzzles and opening up important pathways in the environment itself.
In the original game, Captain Olimar, from the planet Hocotate, is taking a vacation on his rocket, the S.S. Dolphin, in outer space when a comet hits his rocket and causes him to crash-land onto the Distant Planet. Olimar cannot breathe the environment's oxygen and has only thirty days worth of life support remaining, and in that time he must befriend and take command of the native Pikmin to help him gather all the broken-off pieces of his Rocket so that he may make a return flight back home. Immediately upon his return home in the second game, he finds that the company he works for, Hocotate Freight, is in severe debt, so the company president sends Olimar and his co-worker Louie to scavenge valuable goods from the Distant Planet. In Pikmin 3, another spacefaring race is introduced, and three new main characters - Alph, Brittany, and Charlie - arrive at the Distant Planet and enlist the aid of the Pikmin to help them harvest fruit seeds to save their starving homeworld, Koppai.
 In Super Smash Bros. Melee
Pikmin, having been released right before Melee in Japan, cameos as a pair of collectible trophies, but is not a full-fledged universe. However, in fact, the original Pikmin is the only title in existence that Melee actually features connectivity with; the Captain Olimar trophy is acquired only if there is Pikmin save data on the same Memory Card with Melee saved data.
 In Super Smash Bros. Brawl
Some content of the Pikmin series from Brawl include: one playable character, a stage, some music, and a decent amount of trophies.
On the final character select screen (after all characters are unlocked), Olimar joins the Kirby characters as part of the fifth column.
 In Super Smash Bros. 4
The Pikmin series also offers a stage for Super Smash Bros. for Wii U, as well as the return of Olimar as a playable character.
Garden of Hope: Set in the second area in Pikmin 3, the Pikmin universe has a stage in Super Smash Bros. for Wii U.
 Games with elements from or in the Super Smash Bros. series
 Pikmin 2
The White and Purple Pikmin introduced in this game are two of the Pikmin Olimar can pick using his Pikmin Pluck move.
In addition, the space ship Olimar and Louie use to fly in this game is part of Pikmin & Olimar's Final Smash, End of Day. Olimar's partner, Louie, was first introduced in this game and appears in SSBB as a trophy.
 Pikmin 3