

Auto-saving is disabled in this mode, enemies and items are in different areas, and ammo and other items are significantly more scarce. In this mode, enemies deal even more damage than in Nightmare and are even harder to kill. Inferno: This mode is unlocked after completing the game on Nightmare.You cannot change the difficulty in a Nightmare playthrough. Enemies and items are placed in different areas throughout the game. In this mode, enemies deal significantly more damage and are way harder to kill. Nightmare: This mode is unlocked after completing the game on Hardcore.You cannot change the difficulty in a Hardcore playthrough. Hardcore: In this mode, enemies are stronger, ammo and other items are less available, and you'll receive less ammo when combining items.Standard: This is the standard game mode.Aim Assist will be on, zombies will be weaker and you'll automatically recover a portion of your health as time goes by. Assisted: In this mode, you'll start with an Assault Rifle, receive more ammo when combining items, and have an additional four inventory slots.The player also receives Bonus Points which can be allotted to various functions, allowing for further player-determined character growth. As an RPG, Parasite Eve utilizes experience-based levels with character attributes increasing along with level. Upgrading weapons and armor is performed by "tuning up" with tools, which alters the item's attributes and effects, as well as finding more powerful weapons and armor as the game progresses. The protagonist has multiple options of attacking, defending, and escaping as well. Combat is a mixture of turn-based and real-time, with the former consisting of a Active Time Bar (ATB) that must be fill before and action can be taken, and the latter allowing the characters and enemies to move freely in the meantime. Parasite Eve uses a world map (the city of Manhattan) for movement, with a random encounter system for battles. In the North American market it was packaged with "Squaresoft on PlayStation 1998 Collector's CD Vol.1" a collection of demos of future Squaresoft games.

It is the first game in the Parasite Eve series. The game is a sequel to the novel Parasite Eve, written by Hideaki Sena. Parasite Eve ( パラサイト・イヴ, Parasaito Ivu ?) is a survival horror role-playing game developed and published by Square (now Square Enix).
