Indiana Jones and the Infernal Machine

After the player picks up the Tool From Beyond in the final level, Aetherium, and reaches the huge room where Sophia is levitating, a hole can be found at the center of the room. Going through this hole leads back to the tunnel used to take Indiana to pockets of reality at the start of the level including the Pacific island pocket. If now Indiana goes back to this pocket, he'll find that a new tunnel had appeared on the wall across the Pacific pocket. By going through this new tunnel, Indiana will turn into Guybrush Threepwood, the protagonist of the Monkey Island video game series, the series' theme song will start playing, and the tunnel will lead him to a 3D version of the barbershop from Barbary Coast from The Curse of Monkey Island game. In the room there is a treasure which counts as one of the ten treasures for the level as well as various photo portraits of the Infernal Machine game developers plus a photo of Steven Spielberg and Guybrush himself from The Curse of Monkey Island. Also, Guybrush will now shoot roasted chicken from Indiana's bazooka instead of rockets, even though they will explode just the same upon impact. Once the player leaves this room however, Guybrush will turn back into Indiana. There is another way to turn Indiana into Guybrush - by hitting F10 key on the PC keyboard and typing makemeapirate as one word and pressing the Enter key. The player can then proceed to play as Indiana but with Guybrush's character model. The bazooka will also now shoot roasted chicken.

The CIA's field members are known as "officers," not "agents" - an agent is a foreign national who provides the CIA with inside information.