Here's a list of pages that can be deleted:
https://backrooms.fandom.com/wiki/Level_42
https://backrooms.fandom.com/wiki/Level_690
https://backrooms.fandom.com/wiki/Level_3945
https://backrooms.fandom.com/wiki/Level_Horse_(Joke)
https://backrooms.fandom.com/wiki/Level_Entity
https://backrooms.fandom.com/wiki/Level_13
https://backrooms.fandom.com/wiki/Morphers
https://backrooms.fandom.com/wiki/Level_GL1TCH
https://backrooms.fandom.com/wiki/Almond_(Joke) (probably copied from wikipedia)
https://backrooms.fandom.com/wiki/The_Grass_Protectors_(Joke)
https://backrooms.fandom.com/wiki/Level_10000
https://backrooms.fandom.com/wiki/Level_Googolplex