Unlocking Luigi in Super Mario 64 involves a secret sequence of actions that must be performed within the game. To begin, the player must collect all 120 Power Stars and defeat Bowser. This will cause a star to appear at the top of the castle, which the player must collect. Once this is done, the player must return to the castle courtyard and stand in the middle of the circular platform. They must then do a “backwards long jump” by holding the Z button and pressing A to jump, then immediately pressing the analog stick backward and holding it down. If done correctly, Mario will jump backward and perform a somersault. The player must then quickly press the A button again to do a second jump, which will cause Mario to jump even higher into the air. If the player succeeds, Luigi will jump out of the castle door and become a playable character.
Unlocking Luigi in Super Mario 64 gives the player access to a new set of abilities and gameplay options. Luigi is taller and thinner than Mario, which allows him to jump higher and reach certain areas that Mario cannot. He also has a unique ability called the “Super Jump Punch,” which allows him to punch enemies and objects with a powerful uppercut. Additionally, Luigi has a different voice and personality than Mario, which adds to the game’s replayability.