In the Video Games they were born from a stork egg but in the movie and the animated movie one of them menchens somthing about there mom but not there dad.
Mario
Yamasaki? There names are Mario Mario and Luigi Mario.
mario is luigis bro
mario 3d land
its is Mario as in the super Mario brothers. hi um no its really not that would make no sense Hey im luigis #1 fan and you're wrong Luigis and Marios last name is Gonzales so it's Luigi Gonzales and Mario Gonzales have a nice day!
no one knows yet.
silly! its Luigis mansion
No. They're more like Mario and luigis evil twins.
check the game guide on IGN...........its on the course Big Boo's Haunt :P
trapped in a portrait on the final level of luigis mansion
marios brother is luigi and luigis brother is Mario wario and waluigi are there cousins
in the room just north to the butlers room, its in the washer