The 2020 Nintendo Source Code Gigaleak refers to a massive series of data breaches that exposed internal documents, source code, and assets from legendary consoles like the SNES, N64, and Wii. This event set the internet on fire as fans discovered long-rumored secrets, most notably the confirmation that Luigi was indeed planned for Super Mario 64, validating the 'L is Real 2401' urban legend after decades. The meme culture surrounding the Gigaleak focuses on the surreal feeling of seeing unreleased prototypes, scrapped character designs, and developer notes that were never meant to see the light of day. It is often used to express shock at long-lost media or to joke about Nintendo's intense secrecy being finally breached.