List of costumes in Super Smash Flash 2

Below is a list of each character's costumes in Super Smash Flash 2, including their order, colors, and any source material the costumes are or may be based on. Costumes listed as 1 are the default costumes for their respective characters. Cells colored denote costumes available to, and  teams, respectively.

Currently, Chibi-Robo has only eight costumes consisting of filters. This will be changed in an upcoming version.

Currently, Donkey Kong has only eight costumes consisting of filters. This will be changed in an upcoming version.

Currently, Falco has only nine costumes consisting of filters. This will be changed in an upcoming version.

Currently, Fox has only eight costumes consisting of filters. This will be changed in an upcoming version.

Currently, Goku has only nine costumes consisting of filters. This will be changed in an upcoming version.

Changing Mario's costume will also change the color appearance of the Luma that appears during Mario Tornado.

Currently, Marth has only eight costumes consisting of filters. This will be changed in an upcoming version.

Currently, Meta Knight has only nine costumes consisting of filters. This will be changed in an upcoming version.

Changing Peach's costume will also change the color appearance of the Toad that appears during her.

Currently, Sheik has only nine costumes consisting of filters. This will be changed in an upcoming version.

Changing Waluigi's costume will also change the color appearance of the Piranha Plant that appears during his.

Currently, Zelda has only nine costumes consisting of filters. This will be changed in an upcoming version.