Yes, they appear in games such as Mario and Luigi: Partners in Time and MarioKart. One is called Baby Mario and the other Baby Luigi.
I don't know who king Mario is but I do know that baby Mario is a past version of Mario. So to answer your qustion, no they are not brothers.
Yellow toad is a baby.
there is no such thing as baby luigi but there is baby luigi in Mario kart wii
No
There's no such thing!
No. The only playable characters in New Super Mario Bros. are Mario and Luigi. The minigame mode will also allow you to play as Yoshi or Wario but not Baby Bowser.
Yes, Baby Mario is just Mario when he was a baby.
Two. Mario and Luigi. Wario and Waluigi are not brothers to the Mario bros.
1, the babys are past versions and Wario and Waluigi are evil twins
No, Baby Mario is Mario just as a baby.
I think it was called............ Super Mario brothers or just Mario brothers.
No. Wario and Waluigi are brothers. BUT NOT OF MARIO.