B3313

"Can you hear the princess calling?"

B3313 is a ROM Hack created by Christopher Rios Lillo, that has you explore a fictional beta version of Super Mario 64. Another version was also made by a separate group of people, in the hopes of completing the game (as it was once left undone). However, the original dev has since returned to the project.

You start out playing what looks to be the Super Mario 64 Beta from Nintendo's Space World trade show, but as you explore, it becomes mazelike and warped as you start finding mysteries in and around the castle. The game contains many references to Mario 64 myths (such as the infamous personalization AI), fan-fiction based around such legends, the various betas versions of the game (such as the aforementioned Space World version), and the general liminal nature of the game.