Do anyone remember Cave 3? From the Severance V2
Viewing post in Kit to Leader: 8 Year Anniversary comments
it was in his past games (i think) and it might be found in some remixs but it can be enterend in the severance V2 by finding all the notes, and i dont want to spoil but the end is traumatizing in the cave 3 thing, its after the credits. (P.S. When you find all the notes you will have a quick glimpse of it)