Because Mario needs an enemy.
if you mean the name of the bros its Mario and Luigi but if you mean the name of the game its new super Mario bros
do you mean Bowser, mario's nemesis, or yoshi, mario's trusty steed?
If you mean 'This belongs to Mario', i.e. 'This is Mario's...': 'Esto es de Mario'
what do you mean next papr Mario i don't know when you posted this so theres no way I know witch paper Mario you mean
If you mean paper mario ttyd, then x is Grubba.
Shigeru Miyamoto created Mario, if that's what you mean.
Which Mario? There are a lot of Mario games, you know. Or did you mean the literal one? Beat up Mario? Na-ah. He doesn't exist.
If you mean the voice actor,his name is Charles Martinet.
no just because he stole Mario's cupcake does not mean he is evil. But, Mario is fat and lazy, so Luigi could be mean to him.
Wise or smart
Super Mario Logan