A Mystery Troop (Japanese: 謎の戦闘員Nazo no Sentouin, Mystery Combatant) is a type of Pokémon Trainer that first debuted in the Generation III games, appearing in Pokémon Colosseum. They are multicolored troopers in helmets resembling Sentai characters, with teams that generally match their colors.
The name "Mystery Troop" comes from the fact that upon first meeting them, Wes has not heard the term "Cipher" so he has no idea what organization they belong to. This class refers to three Trainers - Bluno, Rosso and Verde, who each have an evolved ShadowJohtostarter Pokémon. Near the beginning of the game, the player selects one of the three to fight and the other two appear later, after beating the game under the Trainer class "Cipher Peon" since that is what they truly are.