It seems that Nintendo 64 in '96, where it helped to pioneer 3D gaming in the home console market.
Super Mario 64 is a game that became notable for its myths and urban legends, with Internet denizens claiming that Luigi is playable or that Yoshi could be coaxed from the roof of the castle and used as a mount. These secrets were untrue, but fans have made their own fun with Super Mario 64, thanks to the modding scene. Fans have recreated a Super Mario 64, as well as making all kinds of characters playable in the game.
A new secret has been discovered in Super Mario 64, but this one involves a glitch that had never been noticed before. If Mario touches fire in Super Mario 64, then it sets him aflame and smoke comes out of his body. It turns out that the graphics for the smoke have been displaying incorrectly all of this time. Ryan Bloom has chronicled his discovery on Twitter, along with linking to a patch that fixes the glitch in emulated versions of the game by altering a single line of code.
There are rumors that will be remastered for the Switch for the 35th anniversary of the series, though the exact nature of this release has yet to be determined. It's likely that Super Mario 64 will be bundled with other Nintendo 64 games when they're added to the Nintendo Switch Online service in the future, but it's possible that the game will be remade from the ground up. Either way, Nintendo now knows that there are graphical issues with the game and it now has a chance to fix them before it's brought to the Switch.
has secrets that took years to find, such as the Goomba that has never been killed in the final stage through legitimate means. It's incredible that such a popular game still has secrets buried within its code after all of this time. L might not be real and Yoshi might not want to help out Mario on his adventure (except on the Nintendo DS), but there are still tidbits just waiting to be found in the first 3D Super Mario Bros. outing.
Source: Ryan Bloom/Twitter