The Triplets are three Micro Goombas that all resemble each other.
The Triplets can be found in Monstro Town where they along with their father a Goomba open up a shop. They fled out of the Koopa Troop due to fear of fighting Smithy and his gang. However, they will offer to sell useful items to Bowser in order to get his keep back. They can also sell different varieties of Mushrooms.