 All characters and most of the dialogue was controlled by scripting or artificial intelligence; the latter was mainly used for combat scenes.This in itself provided problems, particularly during the scenes in which the character Phil battles through the maps of "Quake"; due to a bug, the character would frequently use a rocket launcher in close range combat instead of a nailgun.Skubis wrote of this "The suspension of disbelief suffered greatly when he gave a Fiend repeated hits at point blank near the end of the scene and didn't, well, die from his own splash damage."