They were born from the same parents. ;)
You can't.You ca only be luigi.
There is no official answer, honestly. All we know is they are Mario and Luigi's "evil counterparts." well Mario and luigi are cousins and waluigi and luigi are brothers Mario and Luigi are brothers... and I highly doubt that Wario and Waluigi are cousins with Mario and Luigi.
Yes, Luigi is Mario's twin brother, in fact. Luigi is the "brother" in "Super Mario Brothers". They are called the "Super Mario Brothers" because Mario is the older twin, more popular than Luigi, and was introduced 2 years before Luigi in 1981.
Luigi and Mario are indeed brothers. Mario is the older brother and Luigi the younger brother.
the brothers are maroi and luigi
4. Mario luigi walugi wario
Luigi
This answer comes in simple terms. They are the Mario Brothers. Therefore their last names are Mario. Seriously. That's it.
As far as I know you can't, but you can turn into Luigi!
Two. Mario and Luigi. Wario and Waluigi are not brothers to the Mario bros.
Yes, they are brothers, with Mario being the oldest.
No. Mario and Luigi are brothers, and Waluigi and Wario are brothers. Wario and Mario; and Luigi and Waluigi are no related in any way. they are only rivals.