Denizen are small creatures who serve as enemies in TranZit in Call of Duty: Black Ops II. They reside in the areas of the map outside any bus stop (Bus Depot, Diner, Town, etc.). When they see a vulnerable player in the open, they will come out of the ground and will jump on the player's back, clawing on their face. Usually, they spawn close to the player and will yell out whenever they are close to reaching the player. In addition to the clawing, the player will walk slower, allowing for other nearby zombies to come and down the player.

Denizen are fairly easy to kill while airborne, but can be rather troublesome if they latch onto the player, since they can only knife the Denizen.

If the player has a denizen on their back and they manage to get under a green light, the denizen will jump off the player and create a teleporter, which the player can enter and it will bring them to a random part of the map. This will also get the player an achievement/trophy for finding another method of traveling.