Dead Ops Arcade

Dead Ops Arcade is a hidden game-mode in Call of Duty: Black Ops. It is similar to another indie game on the Xbox Live Arcade.

Gameplay
Dead Ops Arcade is a twin-stick top-down shooter, in which the player controls a soldier on an "island-like" level, killing zombies. It is similar to the zombie mode in Black Ops as the player gets access to weapons like a flamethrower as well as a ray-gun.

Access
It is found by breaking free of the chair in the main menu, by looking down and mashing the triggers (Space bar on the PC). The player must then locate a computer which holds the Central Intelligence Agency Data system. The game is accessed by using the keyboard on the computer and typing "DOA".