Armor bonus

A group of four armor bonuses in The Plutonia Experiment MAP18: Neurosphere.

An armor bonus (or spiritual armor according to the manuals) is a powerup that appears as a bronze-gray helmet with a green glow emanating from within. Picking one up increases the player's armor percentage by one percent up to a maximum of 200 percent (or, in versions of Doom prior to 1.2, a much larger value).

Green armor and blue megaarmor provide different levels of protection (one third and one half of damage, respectively, are absorbed per hit); armor bonuses do not change the type of protection currently in effect. If a player that has no armor picks up one or more armor bonuses, they grant one third protection, as the standard armor.

This item is counted in the items percentage displayed at the end of each level.

Data

Thing attributes
Thing type	2015 (decimal), 7DF (hex)
Appears in	Shareware Doom Registered Doom Ultimate Doom Doom II/Final Doom
Radius	20
Sprite	BON2
Class	Artifact Pickup

In classic Doom, armor bonuses are first encountered on these levels:

Game	ITYTD and HNTR	HMP	UV and NM
The Ultimate Doom	E1M1: Hangar	E1M1: Hangar	E1M1: Hangar
Doom II	MAP01: Entryway	MAP01: Entryway	MAP01: Entryway
TNT: Evilution	MAP01: System Control	MAP01: System Control	MAP01: System Control
Plutonia	MAP03: Aztec	MAP03: Aztec	MAP03: Aztec

The IWADs contain the following numbers of armor bonuses per skill level:

Game	ITYTD and HNTR	HMP	UV and NM
Doom	385	385	395
The Ultimate Doom	432	436	446
Doom II	404	410	407
TNT: Evilution	308	298	302
Plutonia	93	93	93

Trivia

• In Doom RPG, the armor bonus is called an armor shard. It increases the player's armor rating by 4 units.
• After the score system was removed following the Doom press release beta, skull chests functioned as armor bonuses at one point in development, as seen during a visit to id Software.