The "Super Luigi Sunshine" legend is an urban legend revolving around the 2002 3-D platforming game Super Mario Sunshine.
Description
A popular rumor states that it is possible to unlock Luigi in Super Mario Sunshine. As the rumor goes, collecting all of the game’s 120 Shine Sprites causes the character Waluigi to appear in Delfino Plaza, the game’s main hub, along with Luigi, whom he has trapped in a cage. Defeating Waluigi in a secret boss fight would supposedly unlock Luigi as a playable character. Unfortunately, the game’s files do not contain any code whatsoever for Luigi or his miscreant counterpart, making this rumor officially false. [1]