Doom II begins with the Earth being invaded by legions of beasts from the underworld. To rid your planet of these foul beasts, you must descend into hell and kill each and every enemy you find. Such weapons as a rocket launcher, plasma gun, and the super shotgun can eviscerate these fiends from the pits of fire. Along the way you will encounter original monsters from Doom as well as several additional creatures. ~ Gracie Leach, All Game Guide