Luigi is a fictional character featured in video games and related media released by Nintendo. Created by prominent game designer Shigeru Miyamoto, Luigi is portrayed as the slightly younger but taller fraternal twin brother of Nintendo's mascot Mario, and appears in many games throughout the Mario franchise, often as a sidekick to his older brother.
This story shows us several of Nintendo's most familiar faces fighting for their lives in different scenarios. Although this is all staged, they don't know that there is a powerful being known as the Master Hand... who created all of this for his own amusement, oblivious to the consequences such fights could cause. Therefore, these fighters will create their own resistance to defeat the Master Hand and restore peace to the various Nintendo universes.