Key

Keys are a type of instrument used to open up locks to gain access to various areas

Cut key
thumb|Cut key in Tselinoyarsk

Cut keys, sometimes known as house keys, are the most common type of key. They often come in two types: flat teeth for old gates, and sharp teeth for wafer-tumbler locks.

During the 1960s and 1970s, the Soviets utilized this type of key for the Groznyj Grad weapons lab's main hangar's maintenance door and the radio communication base at the San Hieronymo peninsula's ravine, respectively.

Car keys
Car keys are used to operate or gain access to a vehicle. It activates by having grooved edges that match with the car's design and then moving it to activate a mechanism that, depending on where the lock is located, either unlocks the door, or ignites the engine of the vehicle.

Roy Campbell and Naked Snake, during the 1970 San Hieronymo Takeover, stole a set of keys for a truck and used them to steal one of the base's trucks when escaping the Prison. His niece/birth daughter, Meryl, utilized keys for a Jeep during the Shadow Moses Incident when trying to escape from an impending bombing raid on Shadow Moses Island. Liquid Snake was also implied to have kept the keys to the other Jeep on his person.

Card keys
See main article

Skeleton key


A skeleton key is a type of key named for its resemblance to a skeleton, and is often utilized as a lever key.

During the 1960s and 1970s, the Soviets utilized these keys to access the electronic door to the Groznyj Grad air raid shelter built underneath Krasnogorje and as a means to lock/unlock prison cells on the various facilities at the San Hieronymo Peninsula, respectively.