Evil food
Evil food, also known as bad food, is a monster class that appears in SLASH'EM, SlashTHEM and Hack'EM, and is represented by the percent symbol glyph (%). Evil food is designated internally by the macro S_BAD_FOOD.[1]
The class contains the following monsters:[2]
Common traits
All evil food monsters are neutral carnivores that are unbreathing, mindless, and move at 9 speed; due to resembling normal comestibles. they lack any form of limbs, eyes or a head. Though they resemble food items, they do not actively imitate them like a mimic does, and lack any special interactions (e.g. with digestion attacks), generally behaving like most other monsters—similar behavior can be observed in evil coins.
Evil food monsters attack solely using bites.
In Hack'EM, evil food monsters have acid resistance and a vulnerability to fire.
Generation
Evil food monsters are not randomly generated, and normally created evil food is always generated hostile. They will not appear in Gehennom.
Bad food shops are special rooms that contain only evil food, and have a 1⁄15 chance of being placed in a suitable shop-like room at level creation for dungeon levels at or below 13:[3] the evil food is always generated hostile and asleep.
Evil food monsters do not leave a corpse upon death, and except for the bad egg they have a 1⁄3 chance of dropping an actual food item that they correspond to: killer tripe rations can drop tripe rations, while killer food rations can drop food rations.[4][5]
Strategy
Evil food can be easily distinguished from their mundane counterparts by using the far look command—additionally, they are normally only found in bad food shops, which occur in specific locations on a dungeon level, and can also be spotted with a form of monster detection or warning.