Teams are special characters (most unlockable) that can switch between partners, giving the player more characters to use in stages, working together like the Ice Climbers from Super Smash Bros. and the characters from Castlevania: Portrait of Ruin.
While they are two or more characters (2 being easier to use), they use the same life gauge, so defeating the active one will also defeat the other(s). Other downside is that the customization from the teams is more limited compared to their separated versions, some not being customizable at all. For example, "X & Zero" can't use different weapons and armors besides the ones available to them (max. 20 for each).
Team are never selected in random character selections.
|Mega Man & Bass|
|X & Zero||Basically the same as Project X Zone, with a bit from Mega Man Xtreme 2 and Mega Man X8.|
|Tron Bonne & Baby Head|
|Ryu & Ken||Basically the same as Namco X Capcom and Project X Zone.|
|Zangief and Haggar|
|Honda & Hakan|
|Cyclone and Tsunami||Zangief and E.Honda|
|Juni & Juli||Basically the same as Street Fighter Alpha 3.|
|Balrog & Ed|
Three or more characters
|Commando Team||Captain Commando, Baby Head, Ginzu, and Mack.|
|Metal Heroes||Mega Man, Proto Man, and Bass|
|Maverick Hunters||X, Zero, and Axl. Mega Man X8 and Command Mission.|
|Bonne Family||Tron, Teisel, and Bon, with Servbots assisting.|
|Delta Red||Cammy with her Delta Red friends.|
|The Four Kings||M. Bison, Vega, Balrog, and F.A.N.G|
|Mega Legends||Mega Man, X, Mega Man Volnutt,|
Most teams from Namco X Capcom and Project X Zone.
|Sonic & Tails||A classic Sega team.|
|Reiji & Xiaomu|
|Gil and Ki||The Return of Ishtar|
Teams from different companies.
|Silver Knight and Golden Knight||Arthur and Gilgamesh, with Ki appearing in Super Combos.|
|Mega Man & Galford||Plus Rush and Poppy|
|Blue Bomber and Blue Blur||Mega Man and Sonic|
|Mad Doctors||Dr. Wily and Dr. Eggman|
|X & Leona|
|Zero & Zero||Mega Man X and The King of Fighters|
|Digger and Driller||Mega Man Volnutt and Taizo Hori|
|Ryu & Kyo||Street Fighter and The King of Fighters|
|Chun-Li & Mai||Street Fighter and Fatal Fury|
|Cyclone Lightnings||Zangief and Raiden (SNK), From Raiden's ending in SvC series.|
|Bison & Geese|