Mr. Game & Watch

Mr. Game & Watch is a 2D character meant to serve as the mascot of the Game & Watch Gallery games and the Game & Watch handheld systems. Mr. Game & Watch is not a character from any of the Game & Watch titles, instead being created as a playable character for Super Smash Bros. Melee to represent the Game & Watch line. His appearance seems to be based on the generic people in Fire and Parachute.

Wario Land 4
In Wario Land 4, a character that is very similar to Mr. Game & Watch appears as the Item Shopkeeper. She is an alternate form of the Black Cat's (which is additionally Princess Shokora in her feline form) and serves as the shopkeeper of the Item Shop. She also appears as pictures on the walls of the level Hall of Hieroglyphs. A notable difference between Mr. Game & Watch and the Item Shopkeeper is that the shopkeeper has eyes.

Super Smash Bros. Melee
Mr. Game & Watch makes his character debut in Super Smash Bros. Melee as the final unlockable character. He can be unlocked by playing 1000 Melee matches, beating Classic or Adventure mode with every other character, or by clearing Target Test with every other character. Afterward, the player must defeat Mr. Game & Watch on Flat Zone to unlock him. In All-Star mode, the Mr. Game and Watch team is always the final enemy stage. Here, the player must beat twenty-five Mr. Game & Watches.

Mr. Game & Watch is unique in that his movements are individual frames like with a Game & Watch game. All of his "voice" clips (including screams, taunts, and other such noises) are also sounds heard during various Game & Watch titles. Mr. Game & Watch is portrayed as one of the lightest characters in the game thanks to his flat appearance, heavier than only Pichu and tied with Jigglypuff, which makes him easier to KO, and his attacks, while powerful, are slow. However, he has a high air speed and a low falling speed.

All of Mr. Game & Watch's moves also reference the various Game & Watch units. His neutral special is Chef, which tosses food from a frying pan. His down special is Oil Panic, which absorbs projectiles in a bucket that can be dumped onto opponents to deal a combined damage total. His up special is Fire, which springs him into the air with a trampoline. His side special is Judge, which has Mr. Game & Watch swing a hammer, its effects based on the number he holds up. His standard attack is based on Greenhouse, and his dash attack has him wearing the helmet from Helmet. For his strong attacks, Mr. Game & Watch's forward strong attack is the chair from Lion, his down strong move has him flip a manhole cover from Manhole, and his up strong attack is the flag from Flagman. His neutral aerial is the parachute from Parachute, his forward aerial is a package from Mario Bros., his back aerial is a turtle from Turtle Bridge, his up aerial is based on Spitball Sparky, and his down aerial is a key from Donkey Kong Jr.. His side smash is the torch from Fire Attack, his up smash has him wearing the helmet from Octopus, and his down smash is the hammers from Vermin. All four of his grab animations have him juggling the character like in Ball. His taunt has him ring a bell, based on the alarm feature of Game & Watch units.

Super Smash Bros. Brawl
Mr. Game & Watch returns in Super Smash Bros. Brawl, as an unlockable character. He can be unlocked by playing 250 Brawl matches, clearing Target Smash!! with 30 characters on any difficulty, or having him join the party in The Subspace Emissary; with either of the former methods, he must be defeated on Flat Zone 2 to be unlocked. While he has been made heavier, he is still he second lightest character in the game (now only heavier than Jigglypuff and tied with Squirtle).

In terms of his moveset, his neutral aerial has been replaced with the fishbowl from Tropical Fish, as the parachute is now a part of his up special move. His Final Smash is Octopus, which transforms Mr. Game & Watch into the giant octopus from the Game & Watch unit Octopus.

The Subspace Emissary
In the Subspace Emissary from Super Smash Bros. Brawl, Mr. Game & Watch clones made from Shadow Bugs are in direct command of the Halberd. In addition, according to the Shadow Bugs' trophy information, his body produces Shadow Bugs &mdash; a substance that is used to form members of the Subspace Army, which can be endlessly extracted from him. He doesn't revolt against the Subspace Army at first, as he is unaware of the concept of good and evil. After Meta Knight gets back the Halberd, he takes control. Snake knocks out all the Mr. Game & Watches out of an open window and into the Halberd's bridge, where they melt into Shadow Bugs that merge into Duon, except for the real one. Following the foe's defeat, a Mr. Game & Watch's trophy is left behind. Fox McCloud attempts to shoot it but Princess Peach revives it and gives Mr. Game & Watch her Parasol. Mr. Game & Watch fiddles with it, then walks around with it in Game & Watch quartams, making Peach giggle. He then joins the party helping the rest throughout the game.

Mr. Game & Watch is the only major character to not have a snapshot.

Super Smash Bros. for Nintendo 3DS / Wii U
Mr. Game & Watch reappears in Super Smash Bros. for Nintendo 3DS / Wii U as an unlockable character. In Super Smash Bros. for Nintendo 3DS, he can be unlocked by playing 90 Smash matches or by clearing Classic mode 10 times, and must be defeated on Flat Zone 2. In Super Smash Bros. for Wii U, he can be unlocked by either playing 80 Smash matches or by clearing Classic mode on Intensity 2.0 or higher with five characters, and must then be defeated on Flat Zone X .His inclusion in the game was briefly hinted at in Pac-Man's reveal trailer, where at the end of the video, the screen compares the debut years between him, Pac-Man, Mario and Donkey Kong. His debut year is technically incorrect, because Mr. Game & Watch did not exist as a character until Super Smash Bros. Melee, and his Super Smash Bros. Brawl trophy description considers his debut to be 2002's Game & Watch Gallery. Despite being hinted at in the trailer, he wasn't officially confirmed to be in the game until its release, and was not officially revealed until afterward.

His appearance has been altered a bit, which includes having a smaller nose, and more rounded hands, as well as being smaller in size. While moveset is unchanged from Super Smash Bros. Brawl, there are minor differences in his looks when performing certain moves. He is also given a new down taunt in which he sits down and sighs, based on Mario Bros.

In terms of customizations, Mr. Game & Watch is the only fighter who can be equipped with the Torch, Watch Battery, and Microchip equipment.

Game & Watch Gallery 4
Mr. Game & Watch, along with Mario, hosts the Gift Mode in the Gallery Corner. This is his only speaking role.

WarioWare series
Mr. Game & Watch makes cameos on the menus of WarioWare: Twisted! and in the 'Games' icon in the character selection screen in WarioWare: Touched! Several audiences in The Invent-Off stage cutscenes from WarioWare: Smooth Moves resemble Mr. Game & Watch people. Finally, he also appears in the microgames that are based on the Game & Watch games.

Donkey Kong Country Returns
In Donkey Kong Country Returns and its Nintendo 3DS remake, Mr. Game & Watch makes a cameo appearance in the background of Foggy Fumes. He is seen hammering a pipe.

Snake's codec

 * Snake: Otacon, there's a guy walking around in here...and he's only got two dimensions!
 * Otacon: That's Mr. Game & Watch. He comes from a world where everything is flat. Game & Watch was a series of portable games released by Nintendo in 1980. They were powered by large-scale integrated circuits and only had mono-chrome LCD displays, so characters kinda looked like the numbers on a calculator. The guy you're looking at now, Mr. Game & Watch, was a character who appeared in these games.
 * Snake: This is making my head hurt.
 * Otacon: Well, um... He's... I mean... Look, just start fighting him, and I'm sure everything will make sense.
 * Snake: ...

Trophies (both versions)
Red indicates exclusive to the Nintendo 3DS version. Blue indicates exclusive to the Wii U version.

Palutena's Guidance

 * Pit: Hey, it's a Shadow Bug!
 * Palutena: No, that's just Mr. Game & Watch.
 * Viridi: Watch out for number nine. Pit.
 * Pit: Uh, what are you talking about?
 * Palutena: Mr. Game & Watch's Judge attack displays random numbers. And when it displays "9," the attack is devastating.
 * Viridi: Getting hit with a nine will knock out any fighter with a single strike, no matter who it is. When his back is against the wall, Mr. Game & Watch might try his luck with a Judge attack.
 * Pit: Leaving victory up to luck doesn't seem like the best strategy.
 * Palutena: Well, luck is part of every victory.
 * Viridi: So you'd better watch yourself, Pit.

Trivia

 * Although he generally has a 2D appearance, Mr. Game & Watch's model is actually a 3D model flattened to give the impression that he is a 2D character.
 * Mr. Game & Watch is the only character in Super Smash Bros. Melee whose All-Star trophy does not display him in an alternate coloration. Additionally, that trophy isn't affected by the background lighting, which is shown with most trophies.
 * When turned into metal by a Metal Box, Mr. Game & Watch will still make beeping noises when attacking, moving around, or taking damage. This is likely because he has no voice effects. He also appears more 3-D when metal.
 * In Super Smash Bros. Brawl, however, Mr. Game & Watch will make clanking noises while moving in metal form.
 * While Mr. Game & Watch keeps his silver outline in his Metal form in Super Smash Bros. Melee, his outline becomes black in Metal form in Super Smash Bros. Brawl.
 * Mr. Game & Watch is one of only two fighters who isn't actually a specific video game character. The other is R.O.B, who isn't even a video game character at all.
 * Mr. Game & Watch is the only character is Super Smash Bros. Brawl who doesn't have a snapshot in the Subspace Emissary.