The Mailroom Twitch chat commands list is the set of !mr- commands your viewers type into chat while you are playing — twenty-two of them. The game reads the chat and lets them make your shift harder, and the effects were never written down, so they are worked out by trying them out during a stream.
The Mailroom Twitch chat commands list
Every command is typed in the chat box exactly as written, with the !mr- prefix in front of the name:
!mr-bell!mr-boo!mr-bottle!mr-breakcompressor!mr-bugs!mr-buttpaper!mr-cow!mr-doll!mr-eggplant!mr-fixcompressor!mr-flush!mr-frogs!mr-furnace!mr-gravity!mr-heartbeat!mr-invert!mr-junkmail!mr-lights!mr-meat!mr-murder!mr-push!mr-tornado
What the names tell you
Several of the names map onto things that are part of the ordinary job: the bell you ring to call the assistant, the furnace, the junk mail, the meat and the frogs. Others point at the machinery and the world state that can be disturbed, such as !mr-breakcompressor, !mr-fixcompressor, !mr-invert and !mr-gravity.
The compressor pair is the one worth recognising first. A stopped compressor is a real failure you will meet during a shift rather than a one-off, and the same two commands let your chat break the equipment and put it back together. Repairing it and getting the tubes moving again is covered in furnace and machinery upkeep.