There are several areas that are all based on the same beta lobby design and all look similar to each other.
- Beta Lobby A : A beta lobby which is inspired by B-Roll footage.
- Beta Lobby B : A beta lobby which hosts B3313-unique levels.
- Beta Lobby C : A beta lobby which is the right half of SM64 Classified's beta lobby from "Prologue".
- Beta Lobby D : A beta lobby which is the left half of SM64 Classified's beta lobby from "Prologue".
- Beta Lobby E : A beta lobby which is inspired by Shoshinkai footage.
- Wooden Beta Lobby C: An old variant of Beta Lobby C that uses the wooden walking sounds.
- Wooden Beta Lobby B: An old variant of Beta Lobby B that uses the wooden walking sounds. Unlike Wooden Beta Lobby C, this one is inaccessible.
- Fabricated Lobby: A version of the beta lobby that has the fabricated areas.
- Corrupted Beta Lobby: A distorted variant of both the Beta Lobbies and the Fabricated Lobby with a death timer.