If you start a game with any character their robe will be red but the other monks robes are different colors.This is because if you used the Moby morpher you would not be able to tell which is which.
Robot Costume
Attain Martial Artist Rank.
Showdown Costume
Attain Wudai Rank.
Street Costume
Attain Grass Hopper Rank.
Unlock Chase
Defeat Mala Mala Jong in the final level of Adventure Mode.
Unlock Jack
Play through to the midway of Adventure Mode and defeat the Jack Spicer Robot.