Super Mario 64 Beta Archive

Super Mario 64 Beta Archive is a Youtube channel that claims to be an archival of unseen beta footage relating to Super Mario 64. The channel features footage of the game in development, as well as unused music tracks and other beta content.

Content
Videos on the Beta Archive channel usually show off beta or unusual discoveries relating to Super Mario 64. None of these discoveries depict the anomalies many channels usually focus on, and instead hone in on original content. For instance, one of these videos shows off an anti-piracy screen for the game. The video calls this screen "rare" as it doesn't seem to exist in the circulated release, although others have stumbled across it.

Music
There are three music tracks uploaded onto the channel, each appearing to be early versions of existing themes. The first two videos claim that the music came from a developer's personal cassette song archive. Although the third track, Early Castle Theme, has no description.

Removed Video
The video 1995/07/29 Build Rejected Commercial was taken down off the Super Mario 64 Beta Archive channel, but can still be viewed with reuploads. The video features gameplay of an earlier build of the game featuring the music that Planet Bobstar ripped from the 1995/07/29 build of the game. When Mario looks up at the castle, the footage corrupts and turns greyscale as the music stutters, before cutting out and ending there.

As disclosed on the community tab, the video was taken down due to the footage supposedly being altered before being sent to the owner of the account. In what way it was altered is still unknown.

Trivia

 * The channel banner for Super Mario 64 Beta Archive features Motos, the unused enemy found within the July 25th 2020 leak.
 * The creator of the Super Mario 64 Beta Archive account is unknown. They imply themselves to be a Nintendo employee in the video description for 1995 Radio Ad, but the true identity of the creator of the account is still a mystery.
 * They sign their posts on the community tab with "EB".