Editing Co-op mode

'''Co-op mode''' is a [[Modes|mode]] in ''[[Super Smash Bros. Brawl]]'' where the player can get another player to help them with 1-Player [[modes]] over [[Wi-Fi Multiplayer|Wi-Fi]] or directly. Locally, a second player can join in at [[The Subspace Emissary]], [[All-Star Mode]], [[Boss Battles]], [[Target Test|Target Smash]], Home-Run Contest, and [[Multi-Man Brawl]]. Online, with friends, a second player can join at [[Home-Run Contest]] and [[Multi-Man Brawl]].

{{main|Adventure Mode: The Subspace Emissary}}

In many respects, the first player is the "lead", and the second player is a "helper", similar to the 2-player modes of ''Kirby Super Star''. The first player chooses all the characters for the level except for one that is reserved for player 2. In stages where the camera shifts with the player, it will focus on player 1, who is also the only player who can open doors. Furthermore, if player 2 stays offscreen while the camera shifts, they are transported via a [[space jump]] to the first player. Player 2 can activate this at will by pressing the [[+]] or [[Start]] button, depending on the controller. Although player 1 chooses most of the characters, outside of each player's first pick, the remaining choices are "shared stock", in the sense that the first player to be knocked out will respawn as the next character on the list. Note that if player 2 is KO'd and no stock remains, player 1 may still be alive and can continue to play through the level. However, should player 1 be KO'd when there are no remaining stock, the game ends, regardless of player 2's status.

{{main|All-Star Mode}}

If two players attempt to do All Star Mode, they will go though the normal format with a few minor changes:

*Both players must remain alive. If either is KO'd, the game ends and shows the Continue screen.

*Instead of having three [[Heart Container]]s, the players now have five, with the two extras appearing below the platforms that hold the original three.

*The game records that both characters used have completed the mode, in that both characters' Final Smash trophies will be earned and both get credit for completing the mode for challenges. However, the score earned is tracked in a unique slot reserved for co-op mode, which is not attached to any character, and so neither characters' high scores will be altered.

Note that unlike Subspace Emissary, there is no clearly designated "lead" character, in the sense that player 1's role is no different than his or her companion other than that the ending theme will match player 1's character rather than player 2. Either player can activate the portal from the rest area, and either player's demise during a fight will trigger the [[continue]] screen.

{{main|Boss Battles}}[[File:Coopbossbatles.jpg|200px|thumb|Boss Battles Co-op Mode.]]

*Once again, both players must remain alive (like in All-Star Mode). If one player is KO'd, the other may not carry on alone.

*There are five Heart Containers.

*There is only one final score rather than two to be recorded onto the characters.

Like All-Star mode, there is no distinction between the roles of each player. Either player's death will trigger the mode's end, and either player may activate the teleporter in the [[Rest Area]].