Part 2 : https://backrooms.fandom.com/f/p/4400000000000049097
That level probably has partygoers, thats very good =), NO! Dont trust partygoers!
Possible ways to get that level :
Level 11? Because it has radio station?
Level 283??? Due to partygoers?
Level -512503516784729381475762374809120300900518758: Eternal Suffering??? Because it was found by tags Radio Partygoer Roblox?????
Try various ways, trying to find weird radio station, no clip, try to find weird doors or other objects, try to no-clip into that objects/doors
So i will wait until someone will find crates, doors with roblox logo, radios with Cametek's music and partygoers in single level