Final boss
From DoomWiki.org
The Icon of Sin is the boss of Doom II MAP30: Icon of Sin as well as MAP30 of TNT: Evilution and Plutonia. See the walkthrough for a gameplay description.
All the other monsters are a single Doom thing, but the Icon of Sin is made up of a number of parts:
- Romero's head is the thing that must be destroyed. It starts with 250 hit points, but it is hard to hit due to its location deep in a hole.
- A Spawn shooter in front of the head launches skull cubes.
- Several Spawn spots are located around the map; they are the targets for the shooter.
- Wall textures ZZZFACE1 through ZZZFACE9 are arranged to construct a demon face with a hole into its brain. This is what the player sees as the Icon, but it has little to do with its functioning.