What's the name of Super Mario's brother?

Luigi, Mario's twin brother, was originally designed for the role of Action 2P. There are two theories about the origin of naming. One is that there is a company called Mario &; Luigi' s pizza shop, so I had a brainwave and named it Luigi. 、

On the other hand, because its characteristics are similar to Mario's, and the similar Japanese is "るぃじ", Luigi with similar pronunciation is chosen as the name.

Luigi's character story:

Luigi and Mario were different at first, in the American version of Super Mario Bros. 2, but that's because the game is a special case of DreamWorks adaptation, and the other works are still the same; Until Super Mario Collection+Super Mario World, Luigi's figure and appearance in the game are exactly the same as Mario's, which may be the painting method of saving Sprite (just changing the color of clothes).

But in terms of setting, Luigi is taller and thinner than Mario, and their beards are different (Luigi is straight and Mario is curly).