Doug Rattmann | Portal game, Portal, Portal 2 – Pinterest Nachdem er GLaDOS' Neurotoxin-Angriff … 6. Guide :: Rattmann in Portal 2 – Steam Communityĭoug Rattmann, auch bekannt als Ratman, war einer der früheren Aperture Science-Angestellten. This guide is spoiler free and will not include any pictures of the lairs but … 5. This guide will show you how to find all the Ratman lairs in Portal 2. Guide :: Ratman lair locations (SPOILER … – Steam Community A total of 12 have been discovered, 5 in … 4. The hidden rooms are present in both Portal and Portal 2, and are known as the Ratman's Dens. Doug Rattmann, also known as the Ratman, is a former Aperture Science employee, … In Portal 2: Lab Rat, Rattmann is shown to be observing Chell during her … 3.