Although there's a free version, splash out for the paid release and you get smart bombs in the arcade mode, and two extra modes to try: one being mission - based, and the other being
a tough endless mode for cocky veterans.
And just in case you don't feel like saving the world or dominating the competitive Multiplayer
mode, Black Ops also introduces a brand - new Zombie
mode in which you play cooperatively with friends against
endless waves of zombies (which get
tougher and uglier with each wave).