Luigi is Mario's younger brother and one of the characters featured in the Mario series of games. He is depicted as taller and thinner than Mario, as well as having a green shirt and blue overalls. His personality is usually shown as being cowardly, although he has also shown braveness.
Luigi's first appearance was in the Mario Bros. arcade game, where he was simply a palette swap of Mario, with the same abilities and everything. It wasn't until Super Mario Bros: The Lost Levels, where Luigi was given his own abilities. He could jump higher and farther than Mario, but he had less traction, meaning he would slide around more.
