Invulnerability



The invulnerability is a powerup that makes the player immortal for 30 seconds, during which the screen also turns black and white and in negative. It does not protect from telefrags. It 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: