From SmashWiki, the Super Smash Bros. wiki
A non-playable character (or unplayable character) is a character that cannot be controlled by a player via any legitimate means. Most of the time, these characters are controlled by the game (e.g. enemies or bosses). A few of these characters are playable via the use of a GameShark or Action Replay but may cause glitches and/or freeze the game.
From Super Smash Bros.
Giant Donkey Kong
Main article: Giant Donkey Kong
In Melee and in subsequent games, with the introduction of the Super Mushroom, Giant DK is no longer strictly unplayable. Also, the randomized nature of Classic Mode can give the "giant" modifier to playable characters.
Main article: Metal Mario
In Melee, Metal Mario reappears in stage 11 of Adventure Mode after defeating the Fighting Wire Frames and as a random opponent with other metal characters in stage 10 of Classic Mode as well as a trophy. Similar to Giant Donkey Kong, with the introduction of the Metal Box powerup in Melee, Metal Mario is no longer strictly unplayable. The randomized nature of Classic Mode can also give the "metal" modifier to playable characters.
Fighting Polygon Team
Main article: Fighting Polygon Team
The Fighting Polygon Team is faced on stage 10 of the 1P Game, as well as in the Race to the Finish bonus game. The team is made up of polygonal models of the 12 playable characters, but are weak and lack specials.
Main article: Master Hand
In Melee, Master Hand once again reappears as the boss of Classic Mode, sporting a revamped moveset but still relying on stamina. He also appears in Event Match 50. It is possible to play as him with the Master Hand glitch, but this was not intended, making him an unplayable character.
From Super Smash Bros. Melee
Main article: Enemies
Fighting Wire Frames
Main article: Fighting Wire Frames
The spiritual successors to the Polygon Team, the Fighting Wire Frames come in male and female varieties. They appear in Adventure Mode, as well as the various forms of Multi-Man Melee.
Main article: Crazy Hand
Crazy Hand is a left-handed glove that pairs up with Master Hand to double-team players. He can be fought in Classic Mode if certain conditions are met, as well as in Event Match 50.
Crazy Hand reappears once again in Brawl's Classic Mode as the final boss fighting alongside Master Hand when the player reaches the final stage in 9 minutes or less with the difficulty set to Hard or above and without using a continue.
In SSB4's Classic Mode, Crazy Hand features as the final boss fighting alongside Master Hand only when the player reaches the final stage on intensity 3.0 or higher and takes the black path.
Main article: Giga Bowser
Main article: Sandbag
In Brawl, Sandbag once again returns in the Home-Run Contest. He also appears in the lobby of the Wi-Fi Multiplayer mode to "practice" on while the game is loading. It is also an item in Super Smash Bros. Brawl and drops other items when it is attacked.
Main article: Dark Link
Main article: Giant Kirby
Giant Kirby is a gigantic version of Kirby. appears in the Green Greens stage only after beating the Kirby team in under 30 seconds.
Main article: Metal Mario#In Super Smash Bros. Melee
Metal Luigi is a metallic version Luigi. He appears in stage 11 of Adventure Mode fighting alongside Metal Mario only when Luigi is unlocked and appears as a random opponent with other metal characters in stage 10 of Classic Mode.
From Super Smash Bros. Brawl
Main article: Subspace Army
The Subspace Army is featured as the major antagonists of the Subspace Emissary mode. See the main article for more information on the soldiers of the army.
Main article: Petey Piranha
Petey Piranha appears as the first boss of the Subspace Emissary mode, being fought by Kirby. He has Peach and Zelda trapped within cages, and breaking the cages via damaging them is apparently the only method to defeat him.
Main article: Ridley
In SSB4, Ridley reappears as a boss on the Pyrosphere stage, where, if damaged enough, he can join a fighter's side and be KO'd as a normal fighter.
Main article: Meta Ridley
In SSB4, Meta Ridley reappears as a boss on the Pyrosphere stage, where Ridley can transform into Meta Ridley.
Main article: Rayquaza
Rayquaza is another boss in the SSE, being fought by Fox and Diddy Kong.
Main article: Duon
Main article: False character
False characters are clones of characters made of Shadow Bugs.
Fighting Alloy Team
Main article: Fighting Alloy Team
The successor to the Fighting Wire Frame and Polygon teams. The Fighting Alloy Team comes in Red, Blue, Yellow, and Green varieties.
Main article: Tabuu
Tabuu is the final boss of The Subspace Emissary and the leader of the Subspace Army.
From Super Smash Bros. 4
Main article: Master Core
Master Core appears as a secret boss in Classic Mode on intensity 5.1 or higher at the black path. When the hands take enough damage, Crazy Hand leaves the fight and Master Hand transforms into Master Core. It can take on many forms, such as Master Shadow, Master Edges, Master Beast, Master Giant, and Master Fortress.
Main article: Dark Emperor
The Dark Emperor appears as a boss on the Find Mii stage, where it can give fighters random status changes.
Main article: Metal Face
Metal Face appears as a boss on the Wii U version on the Gaur Plains stage at night.
Main article: Yellow Devil
The Yellow Devil appears as a boss on the Wily Castle stage, where, if defeated, ends in a large explosion damaging nearby players except the one who defeated it.
Tables of Non-playable characters
Main article: Boss
Main article: Enemy
Fighter variants/Minor bosses
Main article: Boss#Minor bosses
Characters in moveset
Main article: Moveset
These are constituent characters present in fighters' movesets.
Characters in stage
As stage hazards
Main article: Stage hazard
These characters are stage hazards, as they can interact with players or influence the stage, while being part of the stage.
In Super Smash Bros. Ultimate, stage hazards can be turned on or off. If stage hazards are off, most of these characters do not appear, yet some still appear as background characters.
Main article: Background character
These characters appear in the stage background and have no impact on the battle. If stage hazards are turned off, most of these characters still appear, but some do not as their stages no longer transform.
In addition, some stage hazard characters continue to appear when stage hazards are turned off, but they lose their ability to interact with the battle (at that point becoming background characters).
Characters as items
Main article: Item
Main article: Poké Ball
Main article: Assist Trophies