Play through Call of Duty: World at War, watch the credits roll, then try to survive the intense fanatical onslaught of the Nazi zombies. The Zombie Bonus Mode Trailer gives a glimpse of the unlockable bonus mode that can be played solo or with up to 3 friends via Co-Op. Accumulate points to open new sections and purchase weapon upgrades and ammo - which will be needed to fight off waves of Zombies that gain strength as the action escalates.
Watch the zombies movie here on YouTube (viewer discression required)