Cinnamon was the Guinea Pig that belonged to Vincent, found in Apartment 37. She is obtained as an inventory item, said to already have plenty of food and water, and can be played with during the day. Depending on the player's actions, Cinnamon may have an outsized impact on the future of the world post-disaster. In the Security Room, the guinea pig is a convenient nonhuman being to test which video feed shows the outside. Placing Cinnamon on the chair formerly occupied by Panopticon and switching channels until she mutates allows the correct channel with a view of the Visitor to be identified and copied for the CCTV Recording. The recording takes one minute to copy, ensuring the aggressive, mutated Cinnamon will have to be fought off. Alternatively, the caged Guinea Pig itself can be given to Jasper as an offering, with the rather flimsy pretext that it might have witnessed the Visitor and been unharmed. Doing this leads to the Eternal Fate and XIN-AMON endings.