Alternate costume

In the SSB series, each character can change his/her outfit's color to avoid confusion if he/she is facing the same character they're using.

SSB

• One of Mario's alternate costumes causes his outfit to take on the same color scheme as Wario's original plumber outfit.
• All of Kirby's and Yoshi's alternate costumes are shown in their respective games.
• One of Captain Falcon's alternate costumes is that of his clone and rival, Blood Falcon.

SSBM

• The player can chose to control Nana in two of the Ice Climbers' alternate costumes. Popo will follow instead.
• One of Mario's alternate costumes causes his outfit to take on the same color scheme as Wario's original plumber outfit.
• One of Captain Falcon's alternate costumes is that of his clone and rival, Blood Falcon.
• One of Mewtwo's costumes makes him look light green. In the 2nd generation of Pokemon games and onward, this is Mewtwo's "shiny" color.
• One of Peach's costumes makes her look like Daisy, even changing her gloves and skin color.
• All of Kirby's and Yoshi's alternate costumes are shown in their respective games.

SSBB

• One of Mario's costumes changes his hat and shirt to white, while changing his overalls to red, causing him to look like Fire Mario.
• Link's black costume has been altered from a black tunic into Dark Link.
• One of Meta Knight's costumes will be Dark Meta Knight.
• One of Peach's costumes makes her look like Daisy.
• Donkey Kong has an alternate costume that is entirely white, resembling a yeti (or perhaps the character Eddie the Mean Old Yeti from the Donkey Kong Country TV series).
• Fox appears to have an alternate costume that looks like his grey-furred rival, Wolf O'Donnell.
• One of Sonic's alternate costumes resembles Shadow the Hedgehog.
• Bowser has an alternate costume in which he has a shining gold shell and bracelets.