Sin



Sin (シン Shin) is a gargantuan whale-like beast which threatens the world of Spira in Final Fantasy X. It was given the name by the people of Spira who believed that the beast was created by the sins of their forefathers due to their use of technology and Machina, which culminated in the Machina War between Bevelle and Zanarkand. It is the primary antagonist throughout the storyline of Final Fantasy X. It's signature attack is a huge gravity attack shot from its "mouth" known as "Giga-Graviton", along with a few lesser Gravity based attacks.

Storyline
For one thousand years, Sin had roamed Spira with one purpose: to bring destruction to technology. Sin was discovered to be the armor of Yu Yevon by Yuna and her guardians. For countless generations, there was only one known way of destroying Sin: A Summoner had to go on a pilgrimage to the ruined city of Zanarkand. There, the summoner would offer one of his or her guardians to Lady Yunalesca (an unsent who was the first summoner to defeat Sin), so he or she may forge the guardian into a powerful aeon known as the Final Aeon, one with enough power to destroy Sin. But there was a flaw: Although the outer shell that is Sin would be destroyed, Yu Yevon would possess the final aeon to create a new Sin consisting of the soul of the sacrificed guardian as its core. A period of time would then pass where this "baby Sin" would grow and not threaten the citizens of Spira. This period, which is variable in length, is known as the Calm.



The people of Spira, however, were deceived into believing that Sin was created to punish the world for the sins they committed, and that it would only die when the world repented for all of its sins. According to Yunalesca, this was done to give the people hope that Sin would eventually go away, since she believed that the Final Aeon was the only way to defeat it.

Additionally, the summoner dies after destroying Sin. Contrary to popular belief, this is caused not by the Final Aeon itself attacking the summoner (as claimed by Rikku) but by the fact that a summoner must give his or her very life energy to evoke the Final Aeon into being. It was also believed that it may be the actual possession of the Final Aeon by Yu Yevon. The strong mind link the summoner and the final aeon share is instantly severed, which is the act that results in the death of the summoner. This is supported by the summoning of Anima by Seymour Guado during the blitzball tournament in Luca with no ill effects. Seymour desired to use this to his advantage by attempting to wed Yuna so that when they reached Zanarkand, Yuna would make him the fayth of the final aeon and eventually Sin. By doing this, Seymour could "end" the suffering of Spira by destroying all of its inhabitants.

Defeat


High Summoner Braska, accompanied by his Guardians Jecht and Auron, were the latest in a line of summoners who completed the final summoning and destroyed Sin. Braska used Jecht for the Fayth in the Final Summoning, in effect turning Jecht into the new incarnation of Sin. After the traditional period of Calm, Sin returned to wreak havoc on Spira. A new generation of summoners assembled and began their respective pilgrimages to Zanarkand. One of the summoners was Braska's daughter Yuna. Meanwhile, the Al Bhed attempted to create machina that would defeat Sin, allying themselves for the first time with the organization of warriors against Sin — the Crusaders, though they were excommunicated for the alliance. Their cooperative attack, known as Operation Mi'ihen, was an utter failure, and many of both the Crusaders and the Al Bhed were killed. Sin overpowered the machina and destroyed it, and the Crusaders who weren't slain battling the Sinspawn were disintegrated by Sin's ultimate attack.



Yuna and her guardians, including Tidus, meanwhile uncovered the plots of Seymour. When Yunalesca revealed the true nature of the Final Summoning, the party decided to aim for an endless Calm by killing Sin's core, Yu Yevon, once and for all. Yuna led her guardians inside Sin after incapacitating its outer defenses, and they met and defeated the embodiment of Jecht, releasing Yu Yevon. After possessing each of Yuna's aeons, Yu Yevon runs out of body shields and is forced to confront the party face-to-face (figuratively, as his "face" in this form is a glowing Yevon glyph). After being defeated, Sin is permanently destroyed and the Eternal Calm starts.

Battle
Various parts of Sin are are fought as bosses throughout the game.

Sinspawn
Sin could create smaller creatures, Sinspawn, from its outer layer. Coming in a variety of shapes and levels of power, the Sinspawn cause trouble for any person that crosses them until Sin arrives and reabsorbs them.


 * Sinscales: Generic Sinspawn.
 * Ammes: A Sea Anemone-like Sinspawn.
 * Echuilles: A Jellyfish-like Sinspawn.
 * Geneaux: A Sinspawn found at the entrance of Kilika Temple, hiding inside a tough shell.
 * Gui: A Fusion of various Sinspawn gathered by the Crusaders for Operation Mi'ihen.
 * Genais: The absolute strongest Sinspawn, with the same shape as Geneaux.

Within Sin
When Sin's armor is penetrated in the final events of Final Fantasy X, the party passes through several areas in order to reach the final stronghold of Yu Yevon:
 * Sea of Sorrow - A haunting, red-tinged sea winding through the landscape, it is traversed through a series of waterfalls and watering blue platforms.
 * Garden of Pain - A series of steps leading to a platform, it is where the battle with Seymour Omnis takes place. Once he has been defeated, this area is bypassed on all subsequent trips through Sin. However, the staves will remain.
 * City of Dying Dreams - A maze of moving platforms and teleport glyphs which must be navigated. Various side paths lead to treasure chests containing weapons and items.
 * Tower of The Dead - As the player approaches what appears to be an exit to the city, a large metal tower descends and blocks their path. Examining a glyph on the side of the tower teleports them to the next area.
 * The Nucleus - A surreal environment of crystaline floors and walls; the goal is to touch the colored crystal orbs which moves around the tower at random. The camera angle is always moving, adding to the disorientation. Touching 10 crystals transports you to the next area, but touching the icicles which sprout from the floor will cause a battle to begin.
 * Dream's End - A ruined version of Zanarkand's Blitzball stadium with a platform leading to the center of the arena. Here the party meets Jecht and fights Braska's Final Aeon. When it has been defeated, Yu Yevon reveals himself, searching for a new Aeon to possess.

Enemy formations

 * Sinspawn Genais, Sin (Boss)
 * Adamantoise
 * Ahriman x3
 * Ahriman, Exoray x2
 * Barbatos
 * Behemoth King
 * Demonolith
 * Demonolith x3
 * Gemini (Mace), Gemini (Sword)
 * Great Malboro
 * Land Worm
 * Varuna
 * Wraith
 * Seymour Omnis, Mortiphasm x4 (Boss)
 * Braska's Final Aeon, Yu Pagoda (Boss)
 * Valefor, Yu Pagoda (Boss)
 * Ifrit, Yu Pagoda (Boss)
 * Ixion, Yu Pagoda (Boss)
 * Shiva, Yu Pagoda (Boss)
 * Bahamut, Yu Pagoda (Boss)
 * Anima, Yu Pagoda (Boss)
 * Yojimbo, Yu Pagoda (Boss)
 * Magus Sisters, Yu Pagoda (Boss)
 * Yu Yevon, Yu Pagoda (Boss)

Dissidia Final Fantasy
The Dream's End area is the representative arena of Final Fantasy X in Dissidia. Unlike most arenas in Dissidia, Dream's End is only used for the two fights against Jecht: one in Tidus' storyline and the other in Shade Impulse. No other bosses are fought here, though a handful of cutscenes do, including Firion and the Onion Knight's respective conversations with Cosmos.

The arena consists of a ruined Blitzball stadium surrounding a circular platform over a field of lava. A massive replica of Jecht's sword appears on the central platform, much like after defeating Braska's Final Aeon in the original game. Long grind bars run along the outter edge of the arena, connecting the central platform to the ruined "stands" opposite. In the Ω version of the stage the Brave pool increases everytime a character guards, dodges, or lands an attack. When landing an attack the Brave pool increase will be equivalent to the amount of damage the attack did.

Etymology
Sin's name in both Japanese and English is a reference to religious concept of "sinning," willfully committing an act against one's religion. The name is also tied to the Semite moon god "Sin," also worshipped in Sumeria as Nanna.

Trivia

 * The final area of Sin, Dream's End, is actually visible in the opening moments of the game. Once the player fights through the first few battles, they are teleported to Dream's End, where a vision of Jecht stands in the central platform, and a cutscene begins when the player approaches it.

Sin