By In the game Yoshi’s Island, the first game in which baby Mario appeared. He appeared as a helpless baby with a red cap with the letter M and a diaper as a dress, considered as a child version of Mario. Later it appeared with the same appearance in Yoshi’s Island DS, but then it is not as defenseless as, like the rest of babies that appear in the game, it has a special ability that is different from the rest, which is to provide greater speed to Yoshi in which it is mounted.
In the rest of games in which he appeared, his appearance changed. He still uses the red cap with the M, but also makes use of a blue oberol and red pole, similar to Mario. But in contrast to this, Baby Mario is faster and can be seen in the games of Mario Tennis, Mario Superstar Baseball and Mario & Luigi: Partners in Time, considering himself a small character in Mario Kart games in which he has appeared.
In Mario Kart: Double Dash!, the special object of Baby Mario is a Chomp Chain that pulls the kart in which it is mounted, advancing something faster than normal and hitting the rivals that are on its way, a characteristic of this delivery of Mario Kart.
Baby Luigi
Baby Luigi is the infantile form of Luigi, as it happens with Baby Mario. Dress similar to Luigi’s, but use diapers. The first appearance of Baby Luigi was in the game Super Mario World 2: Yoshi’s Island where he was kidnapped by Khamek, then rescued by Baby Mario and Yoshi.
In his adult form, Baby Luigi is dubbed by Charles Martinet.
Baby Luigi appears in Yoshi Touch & Go, where Yoshi must rescue Luigi by throwing eggs at the Toadies who carry him. In multiplayer mode, the second player Yoshi takes Baby Luigi instead of Baby Mario.
Baby Luigi’s go-kart in Mario Kart: Double Dash!!, it’s a baby car. He also appears in Mario Superstar Baseball as an unlockable character and is a character in the Speed category.
Baby Luigi stars in Mario & Luigi: Partners in Time next to his adult form and with Baby Mario and Mario. Baby Luigi’s battle skills appear to be identical to those of Baby Mario. The game explains the co-existence of the sibling pairs in this game saying that Mario and Luigi were brought back to the past after Princess Peach traveled to the old Mushroom Kingdom and her trip went terribly wrong. Baby Luigi appears as a secret playable character in Mario Superstar Baseball, Mario Kart Wii and in Mario Super Sluggers.
