Steff's official lore video regarding the iceberg:    • Mario 64's Personalised Copies and Ps...  
Intro: 0:00
Tip of the Iceberg: 0:39
Below the surface: 4:30
Bottom of the Iceberg: 10:51
Dark Water: 19:50
The Abyss: 30:23

ecumber's Metal Mario discovery:   / 1274558568507641859  

Playlist containing all music used in this video:    • SM64 Iceberg song list  

The iceberg image, and twitter thread, that led me to make this video:   / 1264217259796582401  
I know there have been updates to the iceberg since, but honestly you could make a 4 hour video on all the weird stuff in Mario 64 and not cover it all.

A few great Wario Apparitions:
   • 1995/07/29 Build (RESTORATION ATTEMPT)  
   • The Wario Apparition  
  / 1271981645512540162  
  / 1268695575253315584  
   • Every copy of Mario 64 is personalized.  

Much of the research in this video was made possible by The Cutting Room Floor:
https://bit.ly/3g3ezOT
https://bit.ly/2YzcvIo (prerelease)

1996 developer interview: http://shmuplations.com/mario64/
Oman archive: https://www.retroreversing.com/oman-a...
SKELUX's castle video:    • What Peach's Castle REALLY Looks Like!  
Jez San's interview: https://www.eurogamer.net/articles/20...

For documentation on many of the inner workings of SM64, check out https://ukikipedia.net/
For SM64 beta preservation, check out https://www.sm64beta.com/

Shoutouts to SimpleFlips