There were certain differences between catechisms for the young baptized and for the unbaptized catechumen. The catechumen is then immediately baptized. He then immediately baptizes the catechumen with threefold immersion in the name of the Trinity. Sometimes these mystagogical instructions were not given until after the catechumen had been baptized. The term "catechumen" refers to the designated recipient of the catechetical work or instruction. Most catechisms were divided into parts, aiming to follow the spiritual growth of the catechumen. It was also used as the symbol of the catechumen who aspired for martyrdom. A sponsor accompanies any candidate seeking admission as a catechumen. For further discussion not directly related to the state of catechumen, see other Wiki articles. In "Catechumen", the player fights inhuman demons using holy armament. "Catechumen"'s first-person shooter gameplay is similar in many respects to "Quake". This ranges from "Guitar Praise", a Christian-themed rhythm game, to the shooter game "Catechumen". Up until this time he had been a catechumen for most of his adult life. Combined sales of "Catechumen" and N'Lightning's "" reached above 100,000 units by October 2003. "Catechumen" received mixed reviews, holding a score of 53% on GameRankings.