he doesn't like as much attention
More people know about Mario because his name is on the title's of "Mario" games.
Yes its Luigi.
Luigi and Mario are indeed brothers. Mario is the older brother and Luigi the younger brother.
marios brother is luigi and luigis brother is Mario wario and waluigi are there cousins
Luigi
Sonic is Shadow's brother.
Luigi! Luigi is his twin brother! They aren't twins, they are just brother
Luigi is Mario's younger but taller brother.
Depends... Popularity= Luigi wins Any kind of battle or race(no car)= Well you can pretty much say that Luigi goes crying home Being really badassness's= Shadow owns Sensibility= Since basically Shadow's personality is folding his arms and playing the classic antihero... Luigi Strength= Shadow Destroying and/or blowing up stuff= Mr. dark black spiked hedgehog Funny= Luigi Intelligence= ...unknown (I mean, that I consider Luigi a "no brain" guy but, there is a rumor of this character being smart. I can't say for sure. I know Mr. dark black spiked hedgehog or shadow has an average intelligence so, I neither can't say his an idiot or one of those "smarty pants") In appearences in games of Mario(luigi) or Sonic(shadow)= Luigi Awesomeness = shadow Final answer is yes, Shadow can own and beat Luigi.
In My Brother's Shadow was created in 2003.
Shadow of My Brother was created in 1966.
Shadow is not stronger than Super sonic because Supersonic uses the 7 chaos emeralds whilst Shadow uses one of the chaos emeralds to use chaos control but sometimes he can use chaos control with out the chaos emerald. But if Supersonic fuses powers with Shadow, Shadow will turn into SUPER SHADOW