BradyGames-Nightmare Creatures II: Official Strategy Guide Features. Level walkthroughs -- Guide Wallace through nine bone-chilling levels, and put a stop to the insane scheme of Dr. Adam Crowley. Lists of Weapons and Spells -- Inside information on Wallace"s instruments of gruesome destruction. Enemies and Boss Strategy -- Crowley"s demented creations, and how to defeat them. Cheat codes and MORE!