Jigglypuff

Jigglypuff is a Normal/Fairy-type Pokémon (the latter type having only been introduced in Generation VI) and a fighter in every Super Smash Bros. game, starting with the first Super Smash Bros., and usually has to be unlocked first. Jigglypuff's first appearance was in Pocket Monsters Red and Green Versions, released internationally as Pokémon Red and Blue Versions. Classified as the Balloon Pokémon, Jigglypuff evolves from Igglybuff and into Wigglytuff in the Pokémon franchise.

Super Smash Bros.
In Super Smash Bros. Jigglypuff is one of the four unlockable characters, unlocked by clearing 1P Game once, and then defeating it on Saffron City. Jigglypuff is voiced by Rachael Lillis in English and Mika Kanai in the original Japanese, its respective voice actors in Pokémon media.

Jigglypuff was designed to be the weakest character in the game. Jigglypuff is the lightest playable character; while it has up to five midair jumps, tied with Kirby for the most, Jigglypuff can also be launched the easiest. In addition, when Jigglypuff's shield breaks, it is launched higher into the air than any other character, potentially KOing it. Jigglypuff also has a high air speed and the lowest falling speed, but also has low walking and dashing speeds. Its attacks are also slow and weak.

Jigglypuff's neutral special is Pound, in which it slaps its opponents. Its up special is Sing, which puts nearby opponents to sleep, and its down special is Rest, which sends any opponents close enough flying but puts Jigglypuff to sleep. Like Pikachu (and several other Pokémon in subsequent installments), Jigglypuff's stage entrance involves it appearing from a Poké Ball.

For unknown reasons, the Japanese version of the game has both "Purin!" and "Jigglypuff!" announcements, the former being its Japanese name.

Super Smash Bros. Melee
Jigglypuff returns in Super Smash Bros. Melee. According to its page on the Japanese website, Sakurai was torn over whether to have Jigglypuff return or not, but kept it so as to not leave behind fans of the character. Like in the original Super Smash Bros., Jigglypuff can be unlocked by clearing Classic or Adventure with any character, or by playing 50 Melee matches, and then defeating it on Pokémon Stadium.

Like other re-introduced characters, Jigglypuff's neutral special move, Pound, was made into its side special move, and its new neutral special move is Rollout, which allows Jigglypuff to charge an attack in which it rolls across the screen. Its air speed has been increased for this game, giving it the highest air speed of any character. All of Jigglypuff's jumps also now give height, though the height given decreases as it continues to jump.

Super Smash Bros. Brawl
In Super Smash Bros. Brawl, Jigglypuff returns as an unlockable character once again. It can be unlocked by clearing at least 20 Event Matches after finishing The Subspace Emissary, playing 350 Brawl matches, or by having it join the party in The Subspace Emissary. Similar to the previous game, Jigglypuff (along with Wolf and Toon Link) was nearly cut from the game due to time constraints.

While Jigglypuff's general moveset is unchanged, it has been given a Final Smash, Puff Up. Jigglypuff increases in size dramatically, bouncing players off of it at great speed.

Adventure Mode: The Subspace Emissary
Like Toon Link and Wolf, it makes a rather minor Subspace Emissary appearance, and is the only veteran character who does not appear in the main story of the Subspace Emissary. After finding a red door in The Swamp stage, the player will be taken to Pokémon Stadium 2 and fight Jigglypuff in a one-stock match. Once defeated, it will join the player's party.

Super Smash Bros. for Nintendo 3DS / Wii U
Jigglypuff returns once again as an unlockable character in Super Smash Bros. for Nintendo 3DS, and for the first time as a default playable character in Super Smash Bros. for Wii U. It can be unlocked in the Nintendo 3DS version by collecting 30 pieces of equipment or by winning 120 matches, and Jigglypuff the only unlockable Pokémon fighter in the game. All of its moves and its Final Smash from Super Smash Bros. Brawl are kept in this game.

Super Smash Bros. Ultimate
Jigglypuff appears as an unlockable playable character in Super Smash Bros. Ultimate. Compared to Super Smash Bros. for Nintendo 3DS / Wii U, it moves faster on the ground and in the air, and many of its attacks are more powerful. In addition, Jigglypuff makes an angry expression during its Puff Up move.

World of Light
Jigglypuff is not seen when the fighters oppose Galeem for the first time. However, it is hit by one of Galeem's beams of light and imprisoned in the World of Light like the other non-DLC fighters (except for Kirby), and multiple puppet fighters of it are created. The actual Jigglypuff is eventually defeated, awakening it, and it joins Kirby's team in the battle against Galeem and Dharkon.

Classic Mode route
Jigglypuff's Classic Mode route is themed on the original Super Smash Bros..

Mario Artist: Paint Studio
Artwork of Jigglypuff from Pocket Monsters Red and Green Versions can be used as a stamp in Mario Artist: Paint Studio''.

Super Mario Maker
Jigglypuff appears as one of the Costume Mario costumes in Super Mario Maker, which can be unlocked either by using the Jigglypuff amiibo or by clearing 100 Mario Challenge on Normal difficulty or greater. Its sprite is based on the overworld sprite in the Nintendo DS Pokémon games. Like the other Pokémon costumes, Jigglypuff does not have any altered sound effects.

Super Smash Bros.

 * Data: ''The Balloon PKMN with the big, round eyes. It sings a soothing melody, sending those that hear it to sleep. When mad, it puffs itself up. As a Balloon PKMN, its body is light, weak, and easy to knock away.

Snake's codec

 * Snake: Aw, there's a big eyeball walking around here...
 * Colonel: That's just Jigglypuff.
 * Snake: Jigglypuff? Is that some kind of marshmallow?
 * Colonel: Jigglypuff is a balloon-shaped Pokémon. It may be light and puffy and full of air, but its Sleep ability is devastating.
 * Snake: Sleep...? What's so devastating about it going to sleep?
 * Colonel: The instant it falls asleep, there's a huge buildup of energy in its center of gravity. If it hits you, it's lights out for sure.
 * Snake: So it puts a lot of energy into sleeping? Sounds pretty irresponsible if you ask me.
 * Colonel: Takes all kinds, Snake. Especially here in Brawl.

Palutena's Guidance

 * Pit: That's Jigglypuff, the Balloon Pokémon.
 * Viridi: Look at the way it floats! It must be light as air.
 * Palutena: Don't let its cuddly appearance fool you. It's one of the most aerodynamic fighters out there. And it has a deadly attack called Rest. When Jigglypuff lands the move, the effects can be devastating.
 * Viridi: However, that move does render Jigglypuff vulnerable for a short period of time afterward.
 * Palutena: So when you see Jigglypuff start to fall asleep, that's your cue to move in for the kill.
 * Pit: Gotcha. I'll be sure to keep an eye out for when it nods off.

amiibo

 * This Normal- and Fairy-type Pokémon is best known for its soothing singing, which can make foes fall asleep. The secret to the song’s effectiveness is Jigglypuff’s ability to sing on the wavelength that will make its opponent the sleepiest. It also uses Attract to infatuate foes of the opposite gender.

Super Smash Blog bio
"Jigglypuff can jump 5 times in the air and can move faster in the air than on the ground. Use Jigglypuff's great aerial ability to overwhelm your opponent! If you manage to land the down special Rest, you can powerfully launch your opponent."

Trivia

 * Jigglypuff only has five recolors in Super Smash Bros. Brawl, instead of the usual six. This is also shared with Pokémon Trainer, Lucario, and Sonic.
 * Jigglypuff is the only starting fighter in Super Smash Bros. for Wii U to have a character-specific challenge that's immune to the Golden Hammer.
 * In Super Smash Bros. Melee, a CPU Jigglypuff uses Sing after using up all of its mid-air jumps, which causes it to get KO'd if it's trying to recover.