Long before the Apocalypse began, Sectis spawned a legion of sectoids to guard the outskirts of hell...fending off any attempts made by the powers of good to infiltrate and convert the souls of the damned. Bypass this seemingly impenetrable dark fortress, destroy Sectis, and bring forth the days of Armageddon! The majority of the game involves destroying enemies known as sectoids (in levels one and three), along with end of level bosses, although there are also puzzles to solve in the second level. At the start of a new game, the player can freely fly around; however, when the player's ship flies into an area with a sectoid in it, the sectoid will automatically tether itself to the player and start flying around in a circle (which occurs in the first and third levels). If the player allows it to fly around long enough it will take away one or more shield units. If all five of the player's shield units are destroyed then the game will end. If two sectoids are tethered to the player's ship they will do twice as much damage to the player's shields until the player is able to shoot either one or both of them. The player cannot exit a screen that has sectoids in it until they have been shot. The player's shields will be recharged back to full strength after the completion of a level. Also, colliding with a wall segment (except for the walls of the chamber housing Oculis in level two), being damaged by a boss (in the same manner of a sectoid, as the bosses in the first and third levels will also tether themselves to the player's ship, whereas Oculis will just fire at a player), the Mourning Stars in level two when they explode after hitting a wall and being shot by Oculis will cause damage to player's shields, although Cruci-FIX Repair Kits are found in every level that will restore one unit of the player's shields once the player makes contact with a Kit. Colliding with one of the chamber walls housing Oculis, taking a full, direct hit from a Mourning Star in level two or touching Sectis' cocoon will destroy the player's ship and end the game, despite how many shield units the player had available. The other gameplay element (in the second area) involves the player figuring out what routes to take in a Labyrinth, leading to a puzzle to solve and the Oculis boss to destroy at the end of the level.
ESRB Rating: Not Rated
Genre(s): Shooter