Boss

In video games in general, a boss is a particularly large or difficult computer-controlled character that must be defeated at the end of a segment of a game, whether it be for a level, an episode, or the very end of the game itself.


 * The bosses of the Ultimate Doom episodes are:
 * The boss of Doom II, TNT: Evilution and The Plutonia Experiment (in level 30 of each) is the Icon of Sin.