B3313 / SM64 Internal Plexus

B3313 or Build 3313 (also called SM64 Internal Plexus) is a ROM hack of Super Mario 64 developed by ChrisRLillo and his dev team. It is the largest beta-based SM64 hack to date in terms of the number of accessible areas and star count, as well as various other aspects. B3313 is also the most-downloaded hack on Romhacking.com, with 100K+ downloads to date.