Editing Adventure Mode: The Subspace Emissary

{{ArticleIcons|brawl=yes|fa=yes}}
{{disambig2|the Adventure Mode in ''Brawl''|other uses|Adventure Mode (disambiguation)}}
{{Infobox Game
|title=The Subspace Emissary
|image=[[File:Subspace Emissary Logo.jpg|250px]]
|caption=The official SSE logo.}}
'''Adventure Mode: The Subspace Emissary''' ({{ja|亜空の使者|Akū no Shisha}}, ''Emissary of Subspace''), sometimes abbreviated as '''SSE''' or shortened to '''Subspace Emissary''', is a mode in ''[[Super Smash Bros. Brawl]]'' and the successor to ''[[Melee]]''{{'}}s [[Adventure Mode]]. It was hinted at with the [http://www.smashbros.com/wii/en_us/gamemode/modea/modea01.html This world...] [[DOJO|Dojo]] update on July 20th, 2007, and fully unveiled on August 3rd of the same year. This mode was succeeded by the [[World of Light]] in ''[[Super Smash Bros. Ultimate]]''.

==Overview==
On July 20th, [[Smash Bros. DOJO!!]] was updated with a collection of enigmatic images that depicted {{SSBB|Mario}} and {{SSBB|Kirby}} transforming from [[Trophy|trophies]] into fighters (akin to the introduction of ''Melee''). After Kirby's apparent defeat at the hands of Mario, he is changed back into a trophy, but Mario reverses the transformation and Mario and Kirby shake hands. However, the sky darkens soon after, and [[Meta Knight]]’s ship, the [[Halberd]], flies over the stadium, soon followed by the appearance of [[Primid|a mysterious character]]. The screenshots were accompanied by this description:

''In this world, trophies fight.  They know nothing but fighting.  Fighting is the sole reason for their existence.  Being turned back into a trophy, being unable to fight, is much like death.  Those are the rules of this world.  But...When someone...or something...breaks those rules, the world will pay a terrible price...''

The post was placed under a mode referred to as "???" until August 3rd when it was changed to "Adventure Mode". On August 3rd, Smash Bros. DOJO!! was updated again. This time, more information was given. The mode was dubbed "The Subspace Emissary", and a multitude of screenshots were shown, as well as a cutscene related to the "This World…" update. In the cutscene, Mario and Kirby were seen shaking hands, as depicted in the screenshots, and after waving to the crowd, the Halberd appeared as it did in "This World…". The mysterious character from before was shown to be one of apparently many odd, robot-like creatures formed from some sort of shadowy matter. {{SSBB|Peach}} and {{SSBB|Zelda}} were seen watching from the sidelines but rushed down to the middle of the stadium to assist Mario and Kirby in fighting the mysterious army. After Peach and Zelda reach the stage and help destroy the [[Primid]]s, an entity from the sky called the [[Ancient Minister]] appears on the stage. The Ancient Minister drops a [[Subspace Bomb]] on the arena, then flies off. As Mario approaches the bomb, he is hit by a cannonball and is sent flying from the arena. [[Petey Piranha]] appears and captures Peach and Zelda in cages. 

The various screenshots in the update depicted a multitude of new enemies, as well as a few familiar ones, such as a [[Hammer Bro]], who was previously confirmed as an [[Assist Trophy]], and {{b|Bullet Bill|enemy}}s. There were also a new series of enemies that were introduced that are part of the Subspace army. Some enemies of the Subspace army appear to be helpful while other ones are dangerous.

==Gameplay==
[[File:AdventureMap.jpg|thumb|400px|The [[Adventure Map]], after completion of The Subspace Emissary.]]
[[File:The plain Mario.jpg|thumb|upright=1.4|Mario in the Plain]]
The Subspace Emissary mode is a side-scrolling adventure in the style of a platformer, inspired by the {{uv|Mario}} and {{uv|Kirby}} games. However, it retains all basic mechanics of the [[Super Smash Bros. (series)|''Super Smash Bros.'' series]], such as a [[damage meter]], [[stock]]s, and Smash-style attacks. It can also be classified as a beat 'em up; often stages will [[ambush|pause at specific points]] and force the player to defeat a set of enemies, which prevents one from simply running through everything.

The mode features a [[Adventure Map|world map]] where stages are selected; once a stage is selected, the difficulty can be chosen, and the character(s) will enter the stage. The selectable characters will change depending on the plot. Stages that have been completed already can be played again with the exception of some stages where the player must wait until the Subspace Emissary is beaten like Midair Stadium.

The mode also has a two-player option. When using two players, the first player will have priority over the screen, making it possible for the second player to get run off the screen if the two players are not coordinated. However, the second player has the option to [[Space Jump|warp]] to the first player at any time (except in boss battles) by pressing the [[Start-Pause button|button that would normally pause the game]]. The first player must be present with stock left at all times; if the first player runs out of stock, the game will end and offer a continue, regardless of whether the second player still has stock left. If the second player runs out of stock, the first player can continue alone. In addition, only the first player can navigate through [[door]]s (though the second player can still utilize [[key]]s) and temporary switches. If the second player goes into a barrel cannon or minecart they will be teleported back to the player seconds later unless the first player goes in right after. The second player can also decide when barrel cannons shoot.

When playing a level for the first time, many cutscenes will pause just before gameplay begins, showing a view of all available characters. A message will display how many stock the level allows, and a cursor will appear that allows choosing which characters to play. The order characters are chosen in is the order they will appear: they will cycle through in that order until all stock is depleted. Playing through a level again, there will be a screen before the level allowing choosing between any available characters instead of cutscenes during the level. This can be both an advantage and a disadvantage: there is a wider character variety to choose from, but one cannot (for example) choose only three characters for a four-stock stage. Additionally, no mid-level cutscenes will play, including ones that would normally allow a re-pick of characters that replenishes stocks. While on many levels this makes little difference, it is very problematic on long stages like the second Subspace Bomb Factory, where a replay provides only a fraction of the stock originally given.

The physics of many (if not all) characters are also tweaked slightly. In general, characters run slower, fall faster, and jump better than in brawls. However, the [[midair jump]]s of a character that possesses more than one will be worse than normal. Move mechanics are not altered, although the differing jump heights, jump timing, and gravity will change how effective aerial attacks are. The most significant change is the removal of stamina from Pokémon Trainer's Pokémon, which allows one to use one Pokémon exclusively. Characters are also able to [[swimming|swim]] for significantly longer. Characters retain their standard physics in boss battles. Because Smash relies on KOs by being knocked off stage, in order for the platforming nature to be retained, the camera's reaction time in following a character decreases in proportion to the player's damage. 

[[Grab]]bing mechanics are also altered. Normal enemies cannot be held onto for any length of time; they will be thrown immediately after being grabbed, making it impossible to [[pummel]] them. This means that choosing which throw to use must be done with the Control Stick during the grab animation; inputting no direction will result in a forward throw (with the exception of {{SSBB|Donkey Kong}}, who cannot carry enemies, and instead will utilize his up-throw). Special moves that involve grabbing will fail to grab, like Yoshi and Kirby's standard special moves; such moves have extra Subspace Emissary-only hitboxes (for example, [[Egg Lay]] will deal 13% damage, while Pikmin will deal damage when [[Pikmin Throw|thrown]]). Bosses and large enemies cannot be grabbed; however, Big Primids can be grabbed effectively. None of these changes apply when facing an opposing Smasher due to playing like an actual Brawl, though Kirby will be unable to copy their abilities.

===Clear %===
{{see also|Clear %}}

===Difficulty Levels===
Like most other single-player modes, one can select different difficulty levels to play The Subspace Emissary. At the creation of a new game file, the player may select a "default" [[difficulty]] from Easy, Normal, Hard, Very Hard, and Intense. Stages normally use this default difficulty (which cannot be changed), although the difficulty of a stage can be altered before it is begun. The game keeps track of the hardest difficulty level at which each stage has been cleared, and when a stage is selected, it suggests a difficulty higher than the highest completion level.

As one selects higher difficulties, the game makes these adjustments:

*Enemy health goes up, sometimes considerably with bulky enemies like Greaps.
*Enemies move and attack faster; especially noticeable with the vulnerability period of large enemies and bosses.
*Enemies and obstacles do more damage and have more KO power.
*Enemies' AI generally get smarter (such as attacking more often, or [[Bytan]]s duplicating nonstop).
*More (and sometimes deadlier) enemies appear during locked battles.
*Less favorable items appear, although an increased number of stronger healing items appear when enemies are defeated.
*[[Stock Ball]]s may get rarer (or, in the case of Very Hard and Intense, not exist, being replaced by recovery items instead).
*Certain features travel faster, giving the player less reaction time. 
**Auto-scrolling areas scroll faster.
**Moving walls, floors, and ceilings move faster, making characters more easily [[KO|crushed]].
**Platforms move or fall faster.
**Bomb block explosion chains move faster.
**The effects of temporary switches are shorter.
*Wind speeds increase (including the wind from a [[Borboras]]), sometimes to nonsensical levels.
*More, higher quality, and rarer stickers appear.
*More collectibles (CDs, trophies, stickers) appear.
*More trophy stands appear.
*More coins are given at the end of each level.

==Plot==
{{see also|Plot summary of The Subspace Emissary}}

==Stages==
[[File:Map-labeled.png|thumb|right|Every level numerically ordered:<br>1: Midair Stadium<br>2: Skyworld<br>3: Sea of Clouds<br>4: The Jungle<br>5: The Plain<br>6: The Lake<br>7: The Ruined Zoo<br>8: The Battlefield Fortress<br>9: The Forest<br>10: The Research Facility I<br>11: The Lake Shore<br>12: The Path to the Ruins<br>13: The Cave<br>14: The Ruins<br>15: The Wilds I<br>16: The Ruined Hall<br>17: The Wilds II<br>18: The Swamp<br>19: The Research Facility II<br>20: Outside the Ancient Ruins<br>21: The Glacial Peak<br>22: The Canyon<br>23: Battleship Halberd Interior<br>24: Battleship Halberd Exterior<br>25: Battleship Halberd Bridge<br>26: The Subspace Bomb Factory I<br>27: The Subspace Bomb Factory II<br>28: Entrance to Subspace<br>29: Subspace I<br>30: Subspace II<br>31: The Great Maze]]
The Subspace Emissary consists of 31 different stages. As some stages share the same name, the earlier stage is denoted with an I while the later-appearing stage is followed by a II.

{|class=wikitable
!width="5%"|Icon
!width="5%"|Stage
!width="20%"|Fighters available
!width="10%"|Bosses
!width="10%"|Unlocked fighters
!width="20%"|Lost fighters
!width="20%"|Recovered fighters
!width="5%"|Total fighters
!Width="5%"|Teams
|-
|[[File:SSE-Midair Stadium.png]]
|[[Midair Stadium]]
|{{SSBB|Mario}} (the battle with Kirby (if he was chosen), and the battle with Subspace army), {{SSBB|Kirby}} (all the phases, except the battle with Mario if he was not chosen), {{SSBB|Peach}}, {{SSBB|Zelda}} (both only in the battle with Subspace army)
|{{SSBB|Kirby}} (battled by Mario)/{{SSBB|Mario}} (battled by Kirby), [[Petey Piranha]] (battled only by Kirby)
|{{SSBB|Kirby}}, {{SSBB|Peach}}/{{SSBB|Zelda}} (because they escaped, Mario got sent flying and Wario kidnapped Zelda/Peach)
|&mdash;
|&mdash;
|2
|1, new team: {{SSBB|Kirby}}, {{SSBB|Peach}}/{{SSBB|Zelda}}
|-
|[[File:SSE-Skyworld.png]]
|{{b|Skyworld|SSE}}
|{{SSBB|Pit}} (all the phases), {{SSBB|Mario}} (the last sidescrolling section after Pit rescues him)
|&mdash;
|{{SSBB|Mario}}, {{SSBB|Pit}}
|&mdash;
|&mdash;
|4
|2, new team: {{SSBB|Mario}}, {{SSBB|Pit}}
|-
|[[File:SSE-Sea of Clouds.png]]
|[[Sea of Clouds]]
|{{SSBB|Kirby}}, {{SSBB|Peach}}/{{SSBB|Zelda}} (both all the phases)
|&mdash;
|&mdash;
|&mdash;
|&mdash;
|4
|2
|-
|[[File:SSE-The Jungle.png]]
|[[The Jungle]]
|{{SSBB|Donkey Kong}}, {{SSBB|Diddy Kong}} (both all the phases)
|&mdash;
|{{SSBB|Diddy Kong}} (Bowser kidnaps Donkey Kong)
|&mdash;
|&mdash;
|5
|3, new team: {{SSBB|Diddy Kong}}
|-
|[[File:SSE-The Plain.png]]
|[[The Plain]]
|{{SSBB|Mario}}, {{SSBB|Pit}} (both all the phases)
|&mdash;
|&mdash;
|&mdash;
|&mdash;
|5
|3
|-
|[[File:SSE-The Lake.png]]
|[[The Lake]]
|{{SSBB|Diddy Kong}}, {{SSBB|Fox}} (both all the phases)
|[[Rayquaza]], False {{SSBB|Bowser}}
|{{SSBB|Fox}}
|&mdash;
|&mdash;
|6
|3, {{SSBB|Fox}} joins {{SSBB|Diddy Kong}}
|-
|[[File:SSE-The Ruined Zoo.png]]
|[[The Ruined Zoo]]
|{{SSBB|Lucas}} (all the phases), {{SSBB|Ness}} (only the battle with Porky), {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}) (the last sidescrollings after Lucas joined him)
|[[Porky]] (battled by Lucas and Ness)
|{{SSBB|Lucas}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}) (Wario kidnapped Ness)
|&mdash;
|&mdash;
|8
|4, new team: {{SSBB|Lucas}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}})
|-
|[[File:SSE-The Battlefield Fortress.png]]
|[[The Battlefield Fortress]]
|{{SSBB|Marth}} (all the phases), {{SSBB|Meta Knight}} (second and third phases), {{SSBB|Ike}} (third phase only)
|&mdash;
|{{SSBB|Marth}}, {{SSBB|Meta Knight}}, {{SSBB|Ike}}
|&mdash;
|&mdash;
|11
|5, new team: {{SSBB|Marth}}, {{SSBB|Meta Knight}}, {{SSBB|Ike}}
|-
|[[File:SSE-The Forest.png]]
|[[The Forest]]
|{{SSBB|Link}}, {{SSBB|Yoshi}} (both all the phases)
|{{SSBB|Toon Link}}<ref name="pre1">Toon Link, Wolf and Jigglypuff appear after completing story mode and revisiting the stage to find a hidden door. Entering the door intiates a one stock match against the character. Win and the character joins the team.</ref>
|{{SSBB|Link}}, {{SSBB|Yoshi}}, {{SSBB|Toon Link}}<ref name="pre1"/>
|&mdash;
|&mdash;
|13
|6, new team: {{SSBB|Link}}, {{SSBB|Yoshi}} 
|-
|[[File:SSE-The Research Facility pt1.png]]
|[[The Research Facility (Part I)|The Research Facility I]]
|{{SSBB|Zero Suit Samus}} (all the phases), {{SSBB|Pikachu}} (all the phases starting with the second)
|&mdash;
|{{SSBB|Zero Suit Samus}}, {{SSBB|Pikachu}}
|&mdash;
|&mdash;
|15
|7, new team: {{SSBB|Zero Suit Samus}}, {{SSBB|Pikachu}}
|-
|[[File:SSE-The Lake Shore.png]]
|[[The Lake Shore]]
|{{SSBB|Mario}}, {{SSBB|Pit}} (both fighting against false Zelda and then with Link and Yoshi, who formed the group with them), {{SSBB|Link}}, {{SSBB|Yoshi}} (both fighting against false Peach and then with Mario and Pit, who formed the group with them), {{SSBB|Kirby}} (only in the team that Mario, Pit, Link and Yoshi joined)
|False {{SSBB|Peach}} (battled by Link and Yoshi)/False {{SSBB|Zelda}} (battled by Mario and Pit), {{SSBB|Mario}} and {{SSBB|Pit}} (after Link and Yoshi had fought false Peach)/{{SSBB|Link}} and {{SSBB|Yoshi}} (after Mario and Pit had fought false Zelda)
|&mdash;
|{{SSBB|Peach}}/{{SSBB|Zelda}} (Bowser captured her)
|&mdash;
|14
|5, the groups of {{SSBB|Mario}} and {{SSBB|Pit}}, {{SSBB|Link}} and {{SSBB|Yoshi}}, and {{SSBB|Kirby}} join together.
|-
|[[File:SSE-The Path to the Ruins.png]]
|[[The Path to the Ruins]]
|{{SSBB|Lucas}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}) (both all the phases)
|{{SSBB|Wario}}
|&mdash;
|&mdash;
|&mdash;
|14
|5
|-
|[[File:SSE-The Cave.png]]
|[[The Cave]]
|{{SSBB|Mario}}, {{SSBB|Pit}}, {{SSBB|Link}}, {{SSBB|Yoshi}}, {{SSBB|Kirby}} (everyone all the phases)
|&mdash;
|&mdash;
|&mdash;
|&mdash;
|14
|5
|-
|[[File:SSE-The Ruins.png]]
|[[The Ruins]]
|{{SSBB|Lucas}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}} (after Pokémon Trainer got it)) (both all the phases)
|{{SSBB|Charizard}}, {{SSBB|Wolf}}<ref name="pre1"/>
|{{SSBB|Ivysaur}}, {{SSBB|Charizard}}, {{SSBB|Wolf}}<ref name="pre1"/>
|&mdash;
|&mdash;
|14
|5, {{SSBB|Ivysaur}} and {{SSBB|Charizard}} now are in {{SSBB|Pokémon Trainer}}'s team
|-
|[[File:SSE-The Wilds pt1.png]]
|[[The Wilds (Part I)|The Wilds I]]
|{{SSBB|Marth}}, {{SSBB|Ike}}, {{SSBB|Meta Knight}} (everyone in all phases)
|[[Galleom]]
|&mdash;
|&mdash;
|&mdash;
|14
|5
|-
|[[File:SSE-The Ruined Hall.png]]
|[[The Ruined Hall]]
|{{SSBB|Lucas}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}) (everyone in all phases)
|[[Galleom]]
|&mdash;
|&mdash;
|&mdash;
|14
|4, the groups of {{SSBB|Marth}}, {{SSBB|Ike}} and {{SSBB|Meta Knight}}, and {{SSBB|Lucas}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}) join together.
|-
|[[File:SSE-The Wilds pt2.png]]
|[[The Wilds (Part II)|The Wilds II]]
|{{SSBB|Mario}}, {{SSBB|Pit}}, {{SSBB|Link}}, {{SSBB|Yoshi}}, {{SSBB|Kirby}} (everyone in all the phases)
|&mdash;
|&mdash;
|&mdash;
|&mdash;
|14
|4
|-
|[[File:SSE-The Swamp.png]]
|[[The Swamp]]
|{{SSBB|Diddy Kong}}, {{SSBB|Fox}} (both all the phases), {{SSBB|Falco}} (all phases except the first)
|Giant False {{SSBB|Diddy Kong}}, {{SSBB|Jigglypuff}}<ref name="pre1"/>
|{{SSBB|Falco}}, {{SSBB|Jigglypuff}}<ref name="pre1"/>
|&mdash;
|&mdash;
|15
|4, {{SSBB|Falco}} joins {{SSBB|Diddy Kong}} and {{SSBB|Fox}}
|-
|[[File:SSE-The Research Facility pt2.png]]
|[[The Research Facility (Part II)|The Research Facility II]]
|{{SSBB|Zero Suit Samus}} (all phrases, transforming from Samus by taunting whenever possible), {{SSBB|Pikachu}} (all the phases), {{SSBB|Samus}} (the last sidescrolling and the battle with Ridley)
|False {{SSBB|Samus}} (x2) (battled by Pikachu and Zero Suit Samus), [[Ridley]] (battled by Samus and Pikachu)
|{{SSBB|Samus}}
|{{SSBB|Zero Suit Samus}} (Samus replaces her; playing as Zero Suit Samus is still possible by taunting or pressing C on the nunchuck)
|&mdash;
|15
|4, {{SSBB|Samus}} is now with {{SSBB|Pikachu}}
|-
|[[File:SSE-Outside the Ancient Ruins.png]]
|[[Outside the Ancient Ruins]]
|{{SSBB|Olimar}}, {{SSBB|Captain Falcon}} (both all the phases), {{SSBB|Diddy Kong}}, {{SSBB|Donkey Kong}} (both only in the battle with Subspace army)
|&mdash;
|{{SSBB|Donkey Kong}}, {{SSBB|Captain Falcon}}, {{SSBB|Olimar}}
|{{SSBB|Fox}}, {{SSBB|Falco}} (they did not become trophies, but Diddy Kong left the group, and they all went their separate ways)
|&mdash;
|16
|4, {{SSBB|Diddy Kong}} left {{SSBB|Fox}} and {{SSBB|Falco}} to join {{SSBB|Donkey Kong}}, {{SSBB|Captain Falcon}} and {{SSBB|Olimar}}
|-
|[[File:SSE-The Glacial Peak.png]]
|[[The Glacial Peak]]
|{{SSBB|Ice Climbers}} (only the sidescrolling section), {{SSBB|Meta Knight}} (the sidescrolling section and the battle with Lucario if the player chose him), {{SSBB|Lucario}} (only if the player chose it in the battle with Meta Knight)
|{{SSBB|Lucario}} (battled by Meta Knight)/{{SSBB|Meta Knight}} (battled by Lucario)
|{{SSBB|Ice Climbers}}, {{SSBB|Lucario}}
|&mdash;
|&mdash;
|18
|5, new team: {{SSBB|Meta Knight}} and {{SSBB|Lucario}}. {{SSBB|Ice Climbers}} replace Meta Knight in {{SSBB|Marth}}, {{SSBB|Lucas}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}) and {{SSBB|Ike}}'s group
|-
|[[File:SSE-The Canyon.png]]
|[[The Canyon]]
|{{SSBB|Mario}}, {{SSBB|Pit}}, {{SSBB|Link}}, {{SSBB|Yoshi}}, {{SSBB|Kirby}} (everyone in the battle with Subspace Army)
|&mdash;
|&mdash;
|&mdash;
|&mdash;
|18
|4, the groups of {{SSBB|Mario}}, {{SSBB|Pit}}, {{SSBB|Link}}, {{SSBB|Yoshi}} and {{SSBB|Kirby}}, and {{SSBB|Ice Climbers}}, {{SSBB|Marth}}, {{SSBB|Lucas}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}) and {{SSBB|Ike}} join together
|-
|[[File:SSE-Battleship Halberd Interior.png]]
|[[Battleship Halberd Interior]]
|{{SSBB|Snake}} (all the phases), {{SSBB|Meta Knight}}, {{SSBB|Lucario}} (after they meet Snake)
|False {{SSBB|Peach}} and {{SSBB|Zelda}}
|{{SSBB|Snake}}
|&mdash;
|&mdash;
|19
|4, {{SSBB|Snake}} joins {{SSBB|Meta Knight}} and {{SSBB|Lucario}}
|-
|[[File:SSE-Battleship Halberd Exterior.png]]
|[[Battleship Halberd Exterior]]
|{{SSBB|Peach}}, {{SSBB|Zelda}}/{{SSBB|Sheik}} (both all the phases)
|&mdash;
|{{SSBB|Zelda}}/{{SSBB|Peach}}
|&mdash;
|{{SSBB|Fox}} (he returns and joins Peach and Zelda), {{SSBB|Peach}}/{{SSBB|Zelda}}
|22
|5, new team: {{SSBB|Fox}}, {{SSBB|Peach}}, {{SSBB|Zelda}}
|-
|[[File:SSE-Battleship Halberd Bridge.png]]
|[[Battleship Halberd Bridge]]
|{{SSBB|Snake}}, {{SSBB|Lucario}}, {{SSBB|Fox}}, {{SSBB|Falco}}, {{SSBB|Peach}}, {{SSBB|Sheik}}/{{SSBB|Zelda}} (everyone in the battle with Duon)
|[[Duon]]
|{{SSBB|Mr. Game & Watch}} 
|&mdash;
|{{SSBB|Falco}} (he returns to help fight Duon)
|24
|4, the groups of {{SSBB|Fox}}, {{SSBB|Peach}} and {{SSBB|Zelda}}, and {{SSBB|Meta Knight}}, {{SSBB|Lucario}} and {{SSBB|Snake}} join together, along with adding {{SSBB|Falco}} and {{SSBB|Mr. Game & Watch}}
|-
|[[File:SSE-The Subspace Bomb Factory pt1.png]]
|[[The Subspace Bomb Factory (Part I)|The Subspace Bomb Factory I]]
|{{SSBB|Samus}}, {{SSBB|Pikachu}} (both all the phases)
|&mdash;
|&mdash;
|&mdash;
|&mdash;
|24
|4
|-
|[[File:SSE-The Subspace Bomb Factory pt2.png]]
|[[The Subspace Bomb Factory (Part II)|The Subspace Bomb Factory II]]
|{{SSBB|Donkey Kong}}, {{SSBB|Diddy Kong}}, {{SSBB|Captain Falcon}}, {{SSBB|Olimar}} (everyone all the phases), {{SSBB|Samus}}, {{SSBB|Zero Suit Samus}} (by taunting as Samus), {{SSBB|Pikachu}}, {{SSBB|R.O.B.}} (second section onwards)
|[[Meta Ridley]]
|{{SSBB|R.O.B.}}
|&mdash;
|&mdash;
|25
|1, all three teams combine into one
|-
|[[File:SSE-Entrance to Subspace.png]]
|[[Entrance to Subspace]]
|{{SSBB|Captain Falcon}}, {{SSBB|Diddy Kong}}, {{SSBB|Donkey Kong}}, {{SSBB|Falco}}, {{SSBB|Fox}}, {{SSBB|Ice Climbers}}, {{SSBB|Ike}}, {{SSBB|Kirby}}, {{SSBB|Link}}, {{SSBB|Lucario}}, {{SSBB|Lucas}}, {{SSBB|Mario}}, {{SSBB|Marth}}, {{SSBB|Meta Knight}}, {{SSBB|Mr. Game & Watch}}, {{SSBB|Olimar}}, {{SSBB|Peach}}, {{SSBB|Pikachu}}, {{SSBB|Pit}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}), {{SSBB|R.O.B.}}, {{SSBB|Samus}}, {{SSBB|Snake}}, {{SSBB|Yoshi}}, {{SSBB|Zelda}} (only four chosen characters can be played as)
|&mdash;
|&mdash;
|{{SSBB|Mario}}, {{SSBB|Donkey Kong}}, {{SSBB|Link}}, {{SSBB|Samus}}, {{SSBB|Yoshi}}, {{SSBB|Kirby}}, {{SSBB|Fox}}, {{SSBB|Pikachu}}, {{SSBB|Captain Falcon}}, {{SSBB|Peach}}, {{SSBB|Zelda}}, {{SSBB|Ice Climbers}}, {{SSBB|Marth}}, {{SSBB|Mr. Game & Watch}}, {{SSBB|Falco}}, {{SSBB|Meta Knight}}, {{SSBB|Pit}}, {{SSBB|Olimar}}, {{SSBB|Lucas}}, {{SSBB|Diddy Kong}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}), {{SSBB|Lucario}}, {{SSBB|Ike}}, {{SSBB|R.O.B.}}, {{SSBB|Snake}} (Tabuu turns them into trophies)
|&mdash;
|0
|0
|-
|[[File:SSE-Subspace pt1.png]]
|[[Subspace (Part I)|Subspace I]]
|{{SSBB|King Dedede}} (all phases), {{SSBB|Ness}}, {{SSBB|Luigi}} (only in the sidescrolling sections)
|{{SSBB|Bowser}} (battled only by King Dedede)
|{{SSBB|Luigi}}, {{SSBB|Ness}}, {{SSBB|Bowser}}, {{SSBB|King Dedede}}
|&mdash;
|{{SSBB|Mario}}, {{SSBB|Donkey Kong}}, {{SSBB|Samus}}, {{SSBB|Fox}}, {{SSBB|Pikachu}}, {{SSBB|Captain Falcon}}, {{SSBB|Marth}}, {{SSBB|Mr. Game & Watch}}, {{SSBB|Falco}}, {{SSBB|Pit}}, {{SSBB|Olimar}}, {{SSBB|Lucas}}, {{SSBB|Diddy Kong}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}), {{SSBB|Ike}} (only if rescued by King Dedede, Ness, and Luigi; fighters not rescued can still be found when replaying the level)
|From 4 to 19
|1, new team: {{SSBB|King Dedede}}, {{SSBB|Ness}}, {{SSBB|Luigi}}, {{SSBB|Bowser}}, {{SSBB|Mario}}, {{SSBB|Donkey Kong}}, {{SSBB|Samus}}, {{SSBB|Fox}}, {{SSBB|Pikachu}}, {{SSBB|Captain Falcon}}, {{SSBB|Marth}}, {{SSBB|Mr. Game & Watch}}, {{SSBB|Falco}}, {{SSBB|Pit}}, {{SSBB|Olimar}}, {{SSBB|Lucas}}, {{SSBB|Diddy Kong}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}) and {{SSBB|Ike}}
|-
|[[File:SSE-Subspace pt2.png]]
|[[Subspace (Part II)|Subspace II]]
|{{SSBB|Kirby}} (all the phases)
|&mdash;
|{{SSBB|Ganondorf}} (if Kirby found Link and Zelda, who rescue him), {{SSBB|Wario}} (If Kirby found him)
|&mdash;
|{{SSBB|Kirby}} (guaranteed), {{SSBB|Link}}, {{SSBB|Yoshi}}, {{SSBB|Peach}}, {{SSBB|Zelda}}, {{SSBB|Ice Climbers}}, {{SSBB|Meta Knight}}, {{SSBB|Lucario}}, {{SSBB|R.O.B.}}, {{SSBB|Snake}} (only if Kirby rescues them; fighters not found can be rescued upon replaying the level)
|From 5 to 31
|1, {{SSBB|Kirby}}, {{SSBB|Link}}, {{SSBB|Yoshi}}, {{SSBB|Peach}}, {{SSBB|Zelda}}, {{SSBB|Ice Climbers}}, {{SSBB|Ganondorf}}, {{SSBB|Meta Knight}}, {{SSBB|Lucario}}, {{SSBB|R.O.B.}}, {{SSBB|Snake}} and {{SSBB|Wario}} join {{SSBB|King Dedede}}, {{SSBB|Ness}}, {{SSBB|Luigi}}, {{SSBB|Bowser}}, {{SSBB|Mario}}, {{SSBB|Donkey Kong}}, {{SSBB|Samus}}, {{SSBB|Fox}}, {{SSBB|Pikachu}}, {{SSBB|Captain Falcon}}, {{SSBB|Marth}}, {{SSBB|Mr. Game & Watch}}, {{SSBB|Falco}}, {{SSBB|Pit}}, {{SSBB|Olimar}}, {{SSBB|Lucas}}, {{SSBB|Diddy Kong}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}) and {{SSBB|Ike}}'s group.
|-
|[[File:SSE-The Great Maze pt1.png]]<br>[[File:SSE-The Great Maze pt2.png]]<br>[[File:SSE-The Great Maze pt3.png]]<br>[[File:SSE-The Great Maze pt4.png]]
|[[The Great Maze]]
|{{SSBB|Bowser}}, {{SSBB|King Dedede}}, {{SSBB|Kirby}}, {{SSBB|Luigi}}, {{SSBB|Ness}} (guaranteed), {{SSBB|Captain Falcon}}, {{SSBB|Diddy Kong}}, {{SSBB|Donkey Kong}}, {{SSBB|Falco}}, {{SSBB|Fox}}, {{SSBB|Ganondorf}}, {{SSBB|Ice Climbers}}, {{SSBB|Ike}}, {{SSBB|Link}}, {{SSBB|Lucario}}, {{SSBB|Lucas}}, {{SSBB|Mario}}, {{SSBB|Marth}}, {{SSBB|Meta Knight}}, {{SSBB|Mr. Game & Watch}}, {{SSBB|Olimar}}, {{SSBB|Peach}}, {{SSBB|Pikachu}}, {{SSBB|Pit}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}), {{SSBB|R.O.B.}}, {{SSBB|Samus}}, {{SSBB|Snake}}, {{SSBB|Wario}}, {{SSBB|Yoshi}}, {{SSBB|Zelda}} (only if they were rescued in Subspace Parts 1 and 2), {{SSBB|Sonic}} (only in the battle with Tabuu)
|[[False character#In The Great Maze|False Characters]], [[Petey Piranha]], [[Rayquaza]], [[Porky]], [[Ridley]], [[Galleom]], [[Duon]], [[Meta Ridley]] (everybody battled by all the characters except Sonic, some characters fought them again), [[Tabuu]] (battled by all the characters even Sonic)
|{{SSBB|Sonic}}
|&mdash;
|&mdash;
|From 6 to 32
|1, {{SSBB|Sonic}} joins {{SSBB|Mario}}, {{SSBB|Donkey Kong}}, {{SSBB|Link}}, {{SSBB|Samus}}, {{SSBB|Yoshi}}, {{SSBB|Kirby}}, {{SSBB|Fox}}, {{SSBB|Pikachu}}, {{SSBB|Luigi}}, {{SSBB|Captain Falcon}}, {{SSBB|Ness}}, {{SSBB|Bowser}}, {{SSBB|Peach}}, {{SSBB|Zelda}}, {{SSBB|Ice Climbers}}, {{SSBB|Marth}}, {{SSBB|Mr. Game & Watch}}, {{SSBB|Falco}}, {{SSBB|Ganondorf}}, {{SSBB|Wario}}, {{SSBB|Meta Knight}}, {{SSBB|Pit}}, {{SSBB|Olimar}}, {{SSBB|Lucas}}, {{SSBB|Diddy Kong}}, {{SSBB|Pokémon Trainer}} ({{SSBB|Squirtle}}, {{SSBB|Ivysaur}}, {{SSBB|Charizard}}), {{SSBB|Lucario}}, {{SSBB|Ike}}, {{SSBB|R.O.B.}} and {{SSBB|Snake}}
|}
====Notes====
<references/>
When only one character is available in Co-op mode, P2 will control an alternate costume of that character. This happens in nine stages: Kirby (in the Midair Stadium vs Petey Piranha and the entirely of Subspace II),  Pit (in The Skyworld, before having Mario join), Lucas (in The Ruined Zoo when he runs from the statue), Marth (in The Battlefield Fortress, before joining Meta Knight and Ike), Zero Suit Samus (in The Research Facility before she joined Pikachu), Meta Knight/Lucario (in The Glacial Peak, only in the battle against the character P1 didn't choose), Snake (in the Battleship Halberd Interior, before he joined Meta Knight and Lucario) and King Dedede (in the Subspace I, only in the battle against Bowser). A ninth battle is at the beginning of the game, where Mario and Kirby duel. This also applies to Diddy Kong when replaying any stage after completing the Jungle before completing the Lake.
<gallery>
Subspace Emissary Plotmap.svg|A map of the stages and which characters are available in each one, not counting Wolf, Toon Link, and Jigglypuff.
</gallery>

==Bosses==
These battles are fought with the bosses having a specific amount of health; once their health runs out, they are defeated.
{|class="wikitable"
!width="10%"|Boss
!width="20%"|Stage
!width="70%"|Fighters
|-
|align="center"|[[File:PeteyRage.jpg|100px]]<br>[[Petey Piranha]]
|Midair Stadium
|Kirby
|- 
|align="center"|[[File:RayquazaRoar.jpg|100px]]<br>[[Rayquaza]]
|The Lake
|Fox and Diddy Kong
|-
|align="center"|[[File:PorkyBot.jpg|100px]]<br>[[Porky Minch|Porky]]
|The Ruined Zoo
|Ness and Lucas
|-
|align="center"|[[File:Galleomdesert.jpg|100px]]<br>[[Galleom]], Part 1
|The Wilds I
|Marth, Ike, and Meta Knight
|-
|align="center"|[[File:Galleom tank.jpg|100px]]<br>[[Galleom]], Part 2
|The Ruined Hall
|Lucas and Pokémon Trainer
|-
|align="center"|[[File:RidleyWings.jpg|100px]]<br>[[Ridley]]
|The Research Facility II
|Samus and Pikachu
|-
|align="center"|[[File:HalberdBridge.jpg|100px]]<br>[[Duon]]
|Battleship Halberd Bridge
|Fox, Falco, Lucario, Snake, Peach, and Zelda/Sheik in a party of 4
|-
|align="center"|[[File:MetaRidleyFalconFlyerSwoop.jpg|100px]]<br>[[Meta Ridley]]
|The Subspace Bomb Factory II
|Samus, Pikachu, Donkey Kong, Diddy Kong, Captain Falcon, Olimar, and R.O.B. in a party of 4
|-
|align="center"|[[File:Tabuu Fight.jpg|100px]]<br>[[Tabuu]]
|The Great Maze
|King Dedede, Luigi, Ness, Bowser, Kirby, Sonic, and any rescued fighters in Subspace (all characters besides Toon Link, Wolf and Jigglypuff) in a party of 6
|}

All the bosses return in [[The Great Maze]].

===Mini-Bosses===
Due to these battles being against smashers or slightly modified versions of them, they are fought like regular brawls. Note that the player characters listed are only mandatory for the first playthrough, and that other characters may be used if the level is replayed.
{|class="wikitable"
!width="10%"|Opponent
!width="20%"|Stage
!width="70%"|Fighters
|-
|align="center"|[[File:MarioVsKirby.png|100px]]<br>{{SSBB|Kirby}} or {{SSBB|Mario}}
|Midair Stadium
|Mario or Kirby, player fights the one they did not choose
|-
|align="center"|[[File:Lakeshore Subspace Emissary.png|100px]]<br>[[False character#False Bowser|False Bowser]]
|The Lake
|Diddy Kong and Fox
|-
|align="center"|[[File:False Peach Brawl.png|100px]]<br>[[False character#False Peach|False Peach]]
|The Lake Shore
|Link and Yoshi (if Peach was rescued)
|-
|align="center"|[[File:False Zelda Brawl.png|100px]]<br>[[False character#False Zelda|False Zelda]]
|The Lake Shore
|Mario and Pit (if Zelda was rescued)
|-
|align="center"|{{SSBB|Mario}} and {{SSBB|Pit}} or {{SSBB|Link}} and {{SSBB|Yoshi}}
|The Lake Shore
|Link and Yoshi (if Peach was rescued; after false Peach's battle) or Mario and Pit (if Zelda was rescued; after false Zelda's battle). Ally is CPU controlled unless playing in Co-op Mode.
|-
|-
|align="center"|[[File:Subspace wario.PNG|100px]]<br>{{SSBB|Wario}}
|The Path to the Ruins
|Lucas and Pokémon Trainer (Squirtle only)
|-
|align="center"|{{SSBB|Charizard}}
|The Ruins
|Lucas and Pokémon Trainer (Squirtle and Ivysaur only, Charizard is obtained after the battle)
|-
|align="center"|[[File:FalseDiddy.png|100px]]<br>Giant [[False character#False Diddy Kong|False Diddy Kong]]
|The Swamp
|Diddy Kong, Fox and Falco
|-
|align="center"|[[File:FalseSamus.png|100px]]<br>2 [[False character#False Samus|False Samus]]es
|The Research Facility II
|Zero Suit Samus and Pikachu
|-
|align="center"|{{SSBB|Lucario}} or {{SSBB|Meta Knight}}
|The Glacial Peak
|Meta Knight or Lucario, player fights the one they did not choose
|-
|align="center"|False Peach and False Zelda
|Battleship Halberd Interior
|Meta Knight, Lucario, and Snake
|-
|align="center"|[[File:SubspaceIntro-Bowser.png|100px]]<br>{{SSBB|Bowser}}
|Subspace I
|King Dedede
|-
|align="center"|[[File:FalseDKfight.jpg|100px]]<br>[[False character#Beings made of Subspace|Subspace copies]] of almost all characters 
|The Great Maze
|King Dedede, Luigi, Ness, Bowser, Kirby, and any characters rescued in Subspace (Mario, Donkey Kong, Link, Samus, Yoshi, Fox, Pikachu, Captain Falcon, Peach, Zelda, Ice Climbers, Marth, Mr. Game & Watch, Falco, Ganondorf, Wario, Meta Knight, Pit, Olimar, Lucas, Diddy Kong, Pokémon Trainer, Lucario, Ike, R.O.B. and Snake) in a party of 4 (everyone but Sonic, he joins only in the battle against the final boss, Tabuu)
|-
|align="center"|[[File:Toon Link Subspace Brawl.png|100px]]<br>{{SSBB|Toon Link}}
|Secret door in The Forest, that teleports to the [[Pirate Ship]] 
|Any character; optional post-game battle
|-
|align="center"|[[File:Wolf Subspace.png|100px]]<br>{{SSBB|Wolf}}
|Secret door in The Ruins, that teleports to the [[Lylat Cruise]]
|Any character; optional post-game battle
|-
|align="center"|[[File:Jigglypuff Subspace Emissary Brawl.png|100px]]<br>{{SSBB|Jigglypuff}}
|Secret door in The Swamp, that teleports to the [[Pokémon Stadium 2]]
|Any character; optional post-game battle
|}
'''Note:''' When only one character is available to fight a boss or mini-boss in Co-op mode, the second player plays as a [[color change]] of that character. For 12 years, this was initially thought to be the only way to play as a character's alternate costume. This only happens in four battles: Mario/Kirby vs the character not chosen by P1, Kirby against Petey Piranha, Meta Knight/Lucario against the character not chosen by P1, and King Dedede against Bowser.

===Other special enemy battle===
*[[Porky Statue]] (The Ruined Zoo): it chases Lucas but it does not fight with him.

===Battles with Subspace Armies===
Some segments in levels, or all a level, has a battle with some enemies from Subspace. Unlike ambushes during sidescrolling segments, red dots on screen are used to indicate how many enemies are left to defeat. 
{|class="wikitable"
!width="10%"|Order
!width="10%"|Enemies to defeat
!width="20%"|Stage
!width="60%"|Fighters
|-
|align="center"|First
|30
|Midair Stadium
|Mario, Peach, Zelda and Kirby (after the battle between Mario and Kirby and before Petey Piranha appears)
|-
|align="center"|Second
|30
|The Battlefield Fortress
|Marth and Meta Knight (Ike joins later)
|-
|align="center"|Third
|40
|Outside the Ancient Ruins
|Donkey Kong, Diddy Kong, Captain Falcon and Olimar
|-
|align="center"|Fourth
|50
|The Canyon
|Mario, Pit, Kirby, Link and Yoshi
|-
|align="center"|Fifth
|50
|The Subspace Bomb Factory II
|Donkey Kong, Diddy Kong, Captain Falcon, Olimar, Samus, Pikachu and R.O.B.
|}

==Similarities to ''Kirby Super Star'' and other ''Kirby'' games==
''The Subspace Emissary'' contains gameplay elements similar to the sub-games of ''[[Kirby Super Star]]'' and other elements from ''Kirby'' games. This is likely intentional, given [[Masahiro Sakurai]]'s work on both games.
*The Halberd plays a very strong role in both games, and in both, it's destroyed and crashes in the ocean.
*The beginning of the [[The Ruined Zoo]] (more specifically the boss battle against the [[Pig King Statue]] and [[Porky Minch]]) is similar to the Heavy Lobster battle in ''Revenge of Meta Knight'': The player is chased by the boss, who remains invincible for this duration and plows through anything in its path. Following the chase, the boss becomes vulnerable and attacks the player head-on.
*Both feature {{b|minecart|vehicle}}s and [[Slide Launcher|special devices]] that propel characters forwards. The latter's design and function comes directly from ''Kirby Super Star''. Additionally, the slide launchers puts characters in a shield position, just like in ''Kirby Super Star''. There are also bomb blocks which function identically to those from the ''Kirby'' series.
*The [[Space Jump]] is just like how P2 from ''Kirby Super Star'' comes back to P1.
*The final boss ([[Tabuu]]) teleports around the stage repeatedly (a common feature in most final bosses in ''Kirby'' games, such as [[Marx]] and [[Nightmare]]).
*Bosses from the ''Kirby'' games, such as {{iw|wikirby|Dyna Blade}} and Marx, have similar moves to bosses in ''Brawl'', such as Ridley and Tabuu.
*Bosses do not flinch.
*Enemies cannot survive underwater; they will be KO'd immediately upon touching it.
*[[Roader]]s are similar to ''Kirby'''s {{iw|wikirby|Wheelie}}s.
*The [[Bucculus]] attacks in a similar way to {{iw|wikirby|Leap}}.
*The planet Floria in Milky Way Wishes has a similar concept to the [[Door#Day-changing doors|day-changing doors]], except that it has four rooms and they are based on seasons instead of day and night.

==Differences from other game modes==
===Gameplay===
Despite characters using the same moves and using much of the same engine as in the other modes of ''Brawl'', the gameplay of the Subspace Emissary differs from that of ordinary [[Versus mode|brawls]]:
*The walking speed, running speed, and [[air speed]] of most characters has been normalized; slower characters move faster, while faster characters move slower. This is quite noticeable with Captain Falcon and Sonic's dashing.
*Player 2 will receive a significant walking speed, running speed and jump height increase as their distance from player 1 increases. This is presumably to prevent them from falling behind too much, but happens regardless of whether they run ahead or fall behind.
*All characters jump 2 frames faster, jump 18% higher, have slightly higher gravity, and have a 19% faster falling speed. As a result, vertical movement is in general faster, while some characters' recoveries (such as Jigglypuff and Pit) are indirectly [[nerf]]ed by the heavier physics.
**Peach's double jump has 40% more force; no other character has a change of more than 10%.
**Snake's double jump has 12% less force.
**Some special moves that grant temporary hovering, such as Diddy's [[Rocketbarrel Boost]], can't keep up with the increased gravity and so are also indirectly nerfed.
*During side-scrolling stages, the player cannot get [[Star KO]]'d - the player crashes into the top of the screen, leaving behind the colorful explosion. Players are only Star KO'd or Screen KO'd in ambushes, boss battles, and fights against Subspace clones.
*All characters can [[swim]] considerably longer.
*The [[Pokémon Change#Stamina|Stamina]] mechanic of the {{SSBB|Pokémon Trainer}}'s Pokémon is removed.
*Grab-only special moves such as [[Inhale]] and [[Egg Lay]] deal damage to enemies instead of grabbing.
*In addition to blocking most attacks, [[Mirror Shield]] can also now do damage.

===Dialogue===
While various characters in the ''Smash'' series have one-liners through [[taunts]], battle cries, and the like, the cutscenes of ''The Subspace Emissary'' have very little spoken dialogue. The vast majority of character interaction takes place through actions, gestures, and expressions, augmented by short grunts or exclamations. Some cutscenes feature moves that have battle cries where the character says the move's name, such as Ness and Lucas using their [[PK Thunder]] or Captain Falcon using his [[Falcon Punch]]. The only character who speaks in more than one scene is Pikachu, who only "speaks" via yelling its own name. In Jigglypuff's only scene, the crowd chants its name, making them the only non-playable character to say a line.

Only one character in all of The Subspace Emissary ever speaks in a full sentence; in [[Battleship Halberd Interior]], {{SSBB|Snake}} directly says to the player, "Kept you waiting, huh?" after revealing himself. This is a classic line from the ''Metal Gear'' series. In ''Brawl'', it references the extensive voicework in the ''Metal Gear Solid'' games, the frequent [[wikipedia:Fourth wall|breaking of the fourth wall]] in the series, and the fact that the player had seen a brief glimpse before already in a much earlier cutscene.

==Trivia==
[[File:MarioTrophyTransform.jpg|thumb|Mario's trophy coming to life in ''Melee''{{'}}s opening, compared to in the [[Midair Stadium]] of the Subspace Emissary.]]
*The Subspace Emissary's camera is programmed to only be able to move through certain area, and will lock if the player goes outside these areas. However, if the player goes a sufficiently large distance above or below the stage's vertical origin, this restriction will inexplicably be bypassed. It's possible that this was programmed in as a failsafe, but this is never possible in normal gameplay, due to the game using a local blast zone system based on the camera's location, and the different behaviour of the upper blast zone. Thus, this phenomenon can only occur if the local blast zones are modified to extend much further out.
*While the mode effectively encourages players to use almost every character in the game, it is possible to complete The Subspace Emissary using as few as twelve characters, or barely one-third of the roster: {{SSBB|Kirby}}, {{SSBB|Pit}}, {{SSBB|Lucas}}, {{SSBB|Marth}}, {{SSBB|Zero Suit Samus}} (transforming from Samus by taunting whenever Samus must be chosen), {{SSBB|Snake}}, {{SSBB|Meta Knight}}, {{SSBB|King Dedede}}, {{SSBB|Diddy Kong}}, either {{SSBB|Link}} or {{SSBB|Yoshi}}, either {{SSBB|Olimar}} or {{SSBB|Captain Falcon}}, and one of either {{SSBB|Peach}}, {{SSBB|Zelda}} or {{SSBB|Sheik}}.
**Co-op mode adds {{SSBB|Mario}}, {{SSBB|Ness}}, {{SSBB|Donkey Kong}}, {{SSBB|Fox}}, Pokémon Trainer's {{SSBB|Squirtle}}, {{SSBB|Ice Climbers}} and {{SSBB|Pikachu}} alongside both pairs (instead of just one) of Link and Yoshi, Olimar and Captain Falcon, Peach and either Zelda or Sheik to the required list.
*Assuming the player rescues no other characters in either [[Subspace (Part I)|Subspace I]] or [[Subspace (Part II)|Subspace II]], it is possible to finish the Subspace Emissary with only 6 characters available in the player's roster: {{SSBB|Luigi}}, {{SSBB|Ness}}, {{SSBB|King Dedede}}, and {{SSBB|Bowser}} from Subspace I, {{SSBB|Kirby}} from Subspace II, and {{SSBB|Sonic}}, who appears at the end of the [[Great Maze]].
*[[Palutena]] is the only character in The Subspace Emissary who is neither a villain/enemy nor playable.
*As far as playable characters go, {{uv|Wario}}, {{uv|R.O.B.}}, and {{uv|Sonic}} are the only universes that do not have a song played at any time.
**In addition, {{uv|Star Fox}} (excluding the hidden room in The Ruins) and the universes mentioned above are the only universes that do not have a song played in normal gameplay.
*{{SSBB|Mario}} and Kirby are playable in more levels than any other character, with a total of nine.
**Pit is playable in eight levels; Link, Yoshi, and Diddy Kong are playable in seven; Peach or Zelda, Lucas, Pokémon Trainer, Meta Knight, and Samus and Pikachu are playable in six (if one count all Pokémon Trainer's Pokémon ({{SSBB|Squirtle}} appears in all six levels, {{SSBB|Ivysaur}} appears in four levels, and {{SSBB|Charizard}} appears in three levels) and both of Samus' versions ({{SSBB|Zero Suit Samus}} appears in the first two levels, and Samus in the last five levels)), Zelda or Peach, {{SSBB|Donkey Kong}}, and {{SSBB|Fox}} are playable in five; {{SSBB|Lucario}} can be playable in four or five; Marth, {{SSBB|Ike}}, {{SSBB|Falco}}, Captain Falcon, Olimar, and Snake are playable in four; {{SSBB|Ness}}, {{SSBB|Ice Climbers}}, and {{SSBB|R.O.B.}} are playable in three; {{SSBB|Mr. Game & Watch}}, {{SSBB|Luigi}} and {{SSBB|King Dedede}} are playable in two; {{SSBB|Bowser}}, {{SSBB|Ganondorf}}, {{SSBB|Wario}}, and {{SSBB|Sonic}} are playable in one. {{SSBB|Toon Link}}, {{SSBB|Wolf}}, and {{SSBB|Jigglypuff}} are absent until after completing The Subspace Emissary.
*Not counting Mario and Donkey Kong (who have been both a protagonist and a villain), {{SSBB|Meta Knight}} and {{SSBB|King Dedede}} are the only two villain characters to be assigned characters before the final stage [[The Great Maze]]
**While {{SSBB|Bowser}} joins the player's team in the SSE by King Dedede, {{SSBB|Ganondorf}} joins them if the player collects Link and Zelda's trophies from [[Subspace (Part II)|Subspace]]. {{SSBB|Wario}} joins if the player collects his trophy on the said stage. 
*The opening battle between Mario and Kirby in The Subspace Emissary may be a reference to the [[opening movie]] of ''[[Super Smash Bros.]]'', where the two face each other near the end of the movie.
**In addition, Mario's [[trophy]] coming to life in the first cutscene could be a reference to the beginning of ''[[Melee]]'''s opening movie.
*The Subspace Emissary is the only mode in the ''Smash Bros.'' series thus far that allows players to unlock characters without fighting and defeating them. ''Ultimate''{{'}}s [[World of Light]] bypasses the usual "Challenger Approaching" battle, but it still requires the player to fight the character that will be unlocked.
*The Subspace Emissary is mentioned several times in {{forwiiu}} in [[Palutena's Guidance]] during the conversation of Mario and [[Mr. Game & Watch]] and the North American English boxing alias for [[R.O.B.]] Also, some enemies from The Subspace Emissary return in {{for3ds}}'s [[Smash Run]] mode. The Subspace Emissary is also referenced in one of the riddles regarding Tabuu, located in the [[Mysterious Dimension]] sub-world of World of Light.
*The health bars for [[enemies]] (not including [[boss]]es) are compressed at the left hand side, so a length of health bar represents more health at the left of the bar than the right. This makes attacks appear to deal less damage the closer an enemy is to dying.
*While all characters use their in-game models during cutscenes, certain parts of characters such as loose clothing and hair have increased polygon counts in order for them to perform smoother. Examples of this are Marth's cape, Link's hair, and Lucas's shirt.
{{clr}}

==See also==
*[[List of cutscenes in The Subspace Emissary]]
*[[Adventure Mode (SSBM)]]
*[[Adventure Mode: World of Light]]

==External links==
*[http://www.smashbros.com/wii/en_us/gamemode/modea/index.html Adventure Mode index]

{{Universe}}
{{SSBBMenus}}
[[Category:Modes (SSBB)]]
[[Category:Single-player modes]]
[[Category:Super Smash Bros. universe]]
[[Category:Subspace Emissary]]
[[Category:Co-op modes]]
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