Invulnerability



The invulnerability is a powerup that makes the player generally impervious from damage for 30 seconds, during which the screen also turns black and white and in negative. It does not protect the player from from telefrags, and is disabled in some areas. The power up looks like a green sphere with a grinning head inside.

The invulnerability can also be activated with the cheat code idbeholdv.

In vanilla Doom, deathmatch mode, invulnerabilities and blur artifacts never respawn. On some source ports there have been implemented rules which would allow them to respawn.



Appearance statistics
The IWADs contain the following numbers of invulnerabilities: