What the sources establish
Start by identifying the room you wake in and the exits you can safely revisit. The official description sets the objective as collecting four keys and one code while navigating abandoned corridors. Use a full walkthrough video as a visual route reference, rather than assuming one recorded run is the only route.
Use the evidence carefully
Do not treat a single video timestamp as a permanent map coordinate. MONOCHROME is in early development and its official page warns players to expect bugs; check the current room layout in your own server before committing to a long detour.
Source note
This guide is based on the supplied MONOCHROME research corpus and the live Roblox game description. Video material is used as a real gameplay reference; it is not presented as an official patch note.