Parasite eve

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

Gameplay
 Parasite Eve  is an action role-playing survival horror video game. [1] <span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">  <span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">Movement in the various <span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">  environments<span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">  <span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">is free. Movement in the " world map<span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">" (which is a map of <span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">  Manhattan<span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">) is limited to specific destinations. Upon the player walking over a "hot spot," there's a chance of a <span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">  random encounter<span style="background-color:rgb(255,255,255);color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;line-height:19.190340042114258px;">. Each time the encounter occurs, the likelihood of the battle reoccurring decreases. Enemies materialize suddenly and though there is no shift to a separate battle screen, the player is bound within a perimeter of unseen barriers until the battle is over, either by defeating all enemies or using the Escape command.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);">In battle, the game uses a pausable real-time combat system, much like Square's Vagrant Story (2000).<sup class="reference" id="cite_ref-1UP-Parish_2-0" style="line-height:1em;">[2] <sup class="reference" id="cite_ref-3" style="line-height:1em;">[3] <sup class="reference" id="cite_ref-4" style="line-height:1em;">[4]  In Parasite Eve, the player has an "Active Time Bar" (ATB) that sets the time for every turn to take action. While waiting for her turn, the player character Aya can be moved around to dodge enemy attacks. Upon each turn, the player may choose between attacking with their equipped weapon by pressing the attack button, using PE (Parasite Energy) for defense, assistance, or attack, using items, changing weapon or armor, or escaping the battle. If the player chooses to attack, the battle briefly pauses,<sup class="reference" id="cite_ref-1UP-Parish_2-1" style="line-height:1em;">[2] <sup class="reference" id="cite_ref-PSX-Extreme_5-0" style="line-height:1em;">[5]  and a dome/sphere symbolizing the range of the weapon appears,<sup class="reference" id="cite_ref-Neoseeker_1-1" style="line-height:1em;">[1] <sup class="reference" id="cite_ref-1UP-Parish_2-2" style="line-height:1em;">[2]  allowing the player to target an enemy within range.<sup class="reference" id="cite_ref-1UP-Parish_2-3" style="line-height:1em;">[2] <sup class="reference" id="cite_ref-PSX-Extreme_5-1" style="line-height:1em;">[5]  If the enemy is outside of the range, the shot is likely to fail. Even if the shot lands, the damage will be less than normal. When the player decides to use Parasite Energy, they must choose from the menu the desired PE skill. The same goes for weapon, armor or items; however, if the player should choose to escape, experience will be lost. Parasite Energy is slowly recharged over time.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);">When not in battle, the player has the option of altering the weapon and armor attributes and effects with tools and super-tools.<sup class="reference" id="cite_ref-Neoseeker_1-2" style="line-height:1em;">[1]  The player selects the "tune-up" option, choosing the weapon that will be altered and the weapon from which the attributes or effect will be taken. One of the principal RPG elements of the game is that experience-based levels are present. Each time the player's level increases, his/her attributes go up and BP (Bonus Points) are given. These points can be distributed to the ATB, item capacity, or attributes of a weapon or armor.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;color:rgb(0,0,0);font-family:sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);">

EX-game
When the game is cleared once, a new mode appears, called the "EX game." It is different from the normal game in various aspects: the player has access to every item stored in the police station, the game begins with the final   weapon   and armor the player chose before ending the first game, and the bonus points (BP) given to the player at the end of the game are now available to use. However, the biggest difference from the normal game is the   Chrysler Building, a progressive   endurance   test.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;font-size:12.727272033691406px;">The Chrysler Building test allows the player the chance to save only every ten floors and only after defeating a boss. The items, weapons, power-ups and enemies are of a higher class. The best items, armors, and weapons are here along with the trading cards that allow the player to make customizations to the weapons and get the tool and super-tool kits. It should also be noted that every floor (except floors 1, 10, 20, 30, 40, 50, 60, 70-77) are completely randomized so each floor is like a maze. Most importantly, the boss in the last floor of the building (77) is the true final boss of the game and has the form of Aya's elder sister, Maya.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;font-size:12.727272033691406px;">

Plot
The game takes place over a six day span in   New York City   in 1997. The incident starts on December 24 and ends on December 29.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;font-size:12.727272033691406px;">The game begins with Aya Brea, an NYPD rookie, attending an opera at the Carnegie Hall with an unnamed date. During the opera, everyone in the building spontaneously combusts, except for Aya, her date, and an actress on stage named Melissa Pearce. Aya confronts Melissa onstage, and Melissa says that Aya’s mitochondria need more time to develop. She flees backstage, with Aya giving chase. Backstage, Melissa then mutates into a beast and flees into the sewers, declaring that her name is now Eve.<sup class="reference" id="cite_ref-Eve_6-0" style="line-height:1em;">[6]

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;font-size:12.727272033691406px;">The next day on Christmas, Aya and her partner Daniel go to see a scientist at the Museum of Natural History named Dr. Klamp. He tells them things about mitochondria that they find useless for their purposes. Later that day, they hear that Eve is in Central Park and to make matters worse an audience has gathered at the parks theater intending to see a performance that Melissa Pearce was to give. Aya enters Central Park alone as Daniel is unable to pass through the entrance without spontaneously combusting. She makes it to the theater, but is too late to stop Eve, who causes the theater audience's mitochondria to rebel against their hosts and turns the crowd into a slimy orange mass. Aya chases after Eve and is knocked unconscious after a fight with her aboard a horse-drawn carriage.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;font-size:12.727272033691406px;">Daniel discovers that his son, Ben, was at the park, but had left the audience at the Central Park theater when he began to feel ill and when his mother began to act strange. He also learns that Manhattan is being evacuated due to the threat that Eve poses. While Manhattan is being evacuated, a Japanese man named Kunihiko Maeda manages to sneak into the city, witnessing a police officer combust into flames in the process. Aya awakens in an apartment in SoHo, with Daniel and Maeda at her side. Maeda reveals the origins of Eve. A scientist tried to culture the cells of his wife after she was involved in a car accident, and the mitochondria in her cells took over her body. Maeda believes that Eve may be trying to give birth to an “Ultimate Being.”

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;font-size:12.727272033691406px;">The next day, the three go to see Dr. Klamp again, and he tells Aya that the nuclei in her cells are fighting Eve’s mitochondria. After he asks a few questions of her, they leave Dr. Klamp and head for the St. Francis Hospital, where Maeda thinks Eve may try to get sperm for the Ultimate Being.<sup class="reference" id="cite_ref-spermbank_7-0" style="line-height:1em;">[7]  When they arrive, they find that Eve is already there. Eve takes the sperm and escapes.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;font-size:12.727272033691406px;">The next day, Aya discovers the orange mass of people from the park enter the city water supply. She goes to Dr. Klamp one more time, and discovers that Dr. Klamp has engineered special sperm for Eve so that she can create the Ultimate Being.<sup class="reference" id="cite_ref-Male_DNA_8-0" style="line-height:1em;">[8]  He then spontaneously combusts. Aya finds Eve in another part of the museum, where the orange mass has surrounded her, forming an impermeable shield to protect her while the Ultimate Being gestates in her.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;font-size:12.727272033691406px;">After several failed attempts to attack Eve, the military asks Aya to attack her from a chopper, as she is the only one who can get close without combusting. The plan works, but Aya has to personally finish the fight on a now-wrecked Statue of Liberty, where Eve finally succumbs. As Aya rests on a naval vessel, the Ultimate Being is born and attacks the surrounding ships. Aya does battle with the Ultimate Being, but its mitochondria causes it to evolve at an alarming rate. Aya sets the vessel's boiler pressure dangerously high, so as to destroy it with the Ultimate Being on board.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.190340042114258px;font-size:12.727272033691406px;">After completing the game a second time, the player can access the Chrysler Building, and have access to the final boss, who takes the form of Aya's sister Maya. She explains to Aya that Klamp cultivated the liver cells of the original Eve to analyze. So when Melissa was giving birth to the ultimate being, she created a nest there. In case Melissa and the ultimate being failed, the purebred would remain. Aya speaks with her sister, and they engage in battle against the purebred. After the purebred is defeated, the mitochondria inside Aya's body begin to rebel against her. The explanation is that Aya's mitochondria have now reached a higher evolutionary stage than Maya’s, but Maya's personality has suddenly become dominant and begun to fight off the Eve persona. Maya eventually wins, purging the Eve persona from herself. Somehow, Maya protects Aya by preventing the original Eve from taking over her. Aya leaves the building by herself, although she apparently has gained some sort of connection with her dead sister.

Connection with All-Stars
Aya brea<span style="background-color:rgb(43,83,181);line-height:20px;">  appear as playable characters.