56K 12:4594% Psychonauts 2 Questionable Area ALL COLLECTIBLES (PSI Challenge Cards & Markers, Chest & Keys)
73K 16:3599% Psychonauts 2 Questionable Area All Collectible Locations (PSI Cards & Markers, Supply Chests & Keys
69K 05:3984% Questionable Area: All PSI Challenge Markers Locations | Psychonauts 2 (Collectibles Guide)