Doom 64 monsters

Doom 64 includes the following monsters from Doom and Doom II:
 * Arachnotron
 * Baron of hell
 * Cacodemon
 * Cyberdemon
 * Demon
 * Hell knight
 * Imp
 * Lost soul
 * Mancubus
 * Pain elemental
 * Shotgun guy
 * Spectre
 * Zombieman

Doom 64 also has new monsters, which are:


 * Mother Demon
 * Nightmare Imp
 * Marine bots, which only appear in the title map.