March 5th 1996 build

The March 5th, 1996, build is a prototype of Super Mario 64 discovered by an anonymous user on Skype and documented by FANDOM user DannyShellstar. Unlike the more sensitive July 29th 1995 build, where researching the topic is heavily discouraged, this build is open for discussion.

Speculation
The build is dated approximately 72 days before E3 1996, so it is entirely possible that this build was going to be shown off at E3, but was modified to remove some things to be safe to be shown at E3.

Reports
''Everything in this section should be taken with a grain of salt. Most of these are all unverified claims.''

DannyShellstar's reports
FANDOM user DannyShellstar reportedly received the build's ROM from an anonymous user on Skype, where he played it for a while, and came across Robo-Mario, a boss removed from Mario 64, but could still appear in the final game thanks to the Personalization A.I.. The boss consisted of dodging attacks that Mario himself could do, and slide kicking Robo-Mario while its back was turned. Robo-Mario also allegedly could attack Toads. Later, while playing the build again on a new save file, he found Rainbow Road, an unused level that could still appear in the final build thanks to the A.I. Rainbow Road only had one star, and that one consisted of racing Koopa the Quick through Rainbow Road, a la Mario Kart. The screenshot also seems to show Rainbow Road from the N64 version of Mario Kart, Mario Kart 64.

After beating Rainbow Road, DannyShellstar reportedly found Robo-Mario again, even though him having 58 stars went against the conditions of spawning Robo-Mario: getting 70 stars without dying once.