You forgot one, on the tram hub tunnel, somewhere else close to an acid pool (devs fixed the floor of the acid pool that exposes the void, also acid can't kill you) there's an tram stopped, saying on the station painel "next stop: master control" or something else, (also ASAS are inside of this tram) Obs: just pick an tram and jump on the "acid" pool are and you will find the secret
ASAS is Limbo Master. That face in limbo when you join and die by meltdown at innovation space ship Limbo Master also have human form i meant its black head with this white smile and a dark yellow costume
