WARIO IS COUSIN and they are RIVALS
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.
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.
noNo. Mario and Luigi are brothers. They are cousins of Wario. Waluigi's relation to them is unknown but he is suspected to be Wario's brother.
Yes: there is Yoshi, Mario, Luigi, Wario, Peach, Daisy, Toad, and Waluigi.
Wario and Waluigi are brothers. They're the evil opposites of Mario and Luigi.
You flip the m in mario up side down to make it wario and you just add a wa to luigi for waluigi.
Waluigi is Luigi's enemy. Just like Wario is Mario's enemy.
Luigi is Mario's brother. Waluigi is Wario's brother. They might all be brothers, though.
No, though they might be cousins, and Wario and Waluigi might be brothers, but it is uncomfimed.
Indeed they are enemies. Waluigi is to Luigi as Wario is to Mario - bitter rivals. Heck, Waluigi's hat has a backwards L.
I guess so because Wario is not friends with Luigi. Wario must be best friends with Waluigi like Mario and Luigi are best friends and bros. So Wario and Waluigi must be best friends and bros.
no. they are brothers and everybody knows that. Wario and Waluigi are their evil twins.