Baby Luigi

Baby Luigi is the baby form/infant counterpart of Luigi. He is Mario's younger twin brother Luigi in baby form. Baby Luigi made his debut in the Super Mario franchise during Super Mario World 2: Yoshi's Island, in which Baby Mario and Yoshi teamed up to rescue him from Baby Bowser.

In Caroline's videos, Baby Luigi has remained practically the same compared to his portrayal in Nintendo canon. He is meek, a coward, and short-tempered, making him an extreme crybaby. However, he is also shown to be very friendly, as he gets along well with others. Baby Luigi, along with Baby Mario, are shown to be very naive, such as when they constantly do things that annoy their older selves.

Despite being an infant, Baby Luigi is actually braver than his adult self.

Biography
In Nintendo canon, Baby Luigi makes his debut in Super Mario World 2: Yoshi's Island, when the stork, along with himself, were kidnapped by Kamek and taken to Bowser's Castle. After he's rescued by Baby Mario and Yoshi, the stork safely delivers Baby Mario and Baby Luigi to their parents.

In Mario & Luigi: Partners in Time, the Mushroom Kingdom was invaded by the Shroobs during Mario & Luigi's infancies. Adult Mario and Adult Luigi traveled back in time to rescue Princess Peach.

In regards to the history of The One Legendary Gamer, Baby Luigi has made appearances in multiple games that Caroline did for CKGamerMii. His first ever appearance however was in CKToons episode???

Personality
As stated above, Baby Luigi's personality has remained unchanged compared to that in Nintendo canon, being shown to be very shy and meek like his adult self. Baby Luigi is mostly friendly as well, since he gets along well with the other babies. Baby Luigi is also prone to crying very frequently and easily.

Trivia

 * As seen in Yoshi's Island DS, Baby Luigi is a Star Child.
 * Baby Luigi often gets mistaken as Luigi and Princess Daisy's child, mainly by noobs. This is incorrect since he is the same person as Luigi, just in baby form as seen in Partners in Time.
 * Baby Luigi used to be enemies with Bowser Junior during the earlier seasons of CKToons. However, more recently they've had multiple friendly occasions with each other. Baby Luigi considers Bowser Jr. a friend.