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[[File:Perfect_dark_gaia.png|thumb|400px]]
'''Perfect Dark Gaia'''|パーフェクトダークガイア|Pāfekuto Dāku Gaia}} is the true form of [[Dark Gaia]], and is the final boss of ''[[Sonic Unleashed]]''. Every time Dark Gaia reaches the peak of its maturity, the beast assumes this grotesque form, which is composed of its premature form combined with extra body parts. As such, this form is the representation of the beast's true nature as a deity of darkness when it is ready to destroy the world. Dark Gaia assumed this form during its battle with [[Sonic the Hedgehog (Character)|Sonic the Hedgehog]] and the [[Gaia Colossus]] when it reached full maturity during the course of the battle, but was eventually defeated by the combined forces of [[Super Sonic]] and the Gaia Colossus.
|first = ''[[Sonic Unleashed]]''
|original = [[Dark Gaia]]
|cause = Dark Gaia reaching complete physical maturity
|skin color = Brown, pink, cyan
|eye color = Green|skills = *Refined energy projection
*Claw attacks
*Levitation of objects
*Hyper-Energy Shield
*Immense super strength
*Heat resistance}}
== Appearance ==
Basically, Perfect Dark Gaia is identical to its immature [[Dark Gaia|Dark Gaia form]], except that it now has gained extra features. Once matured, it grows four extra, identical arms, giving it a total of six arms. Its large mouth, which makes up most of its head, has been opened, revealing seven green eyes; three smaller eyes in each side and one large, central eye where its (former) visual mouth once was. It also gains two more tongues, which hangs out from each side of its central eye.

Its seven tentacles move down from its spine to below the magma that it resides in. Their ends also gain more shape as well, resembling a serpent head with a small mohawk, and each with one green eye in their mouth.
==History==
Perfect Dark Gaia has been the true form of Dark Gaia ever since the creature's birth in the beginning of time. Every time since the beginning of its ageless conflict with [[Light Gaia]], Dark Gaia would assume this form when it had reached full maturity within the [[Earth]]'s core and then rise from the core to destroy the world, but is then at every turn defeated by Light Gaia and send back to the core. In the following battle, Dark Gaia would each time lose this form and return to sleep inside the Earth's core to gather up enough strength to become Perfect Dark Gaia again at its next time of awakening.

In the beginning of ''Sonic Unleashed ''however, Dark Gaia was interrupted in this process due to [[Dr. Eggman]]'s premature awakening of it with his [[Chaos Energy Cannon]]. Since Dark Gaia had not reach its perfect form when Dr. Eggman awoke it, it could not support its own weight and as a result, its entire being and power broke apart and had to be reassembled.

When Sonic and Chip's battle with Dr. Eggman's [[Egg Dragoon]] let them to Dark Gaia's location, Dark Gaia reabsorbed the final fragment of its power from Sonic's [[Sonic the Werehog|Werehog form]], and it became physically complete, but it was not until after the initial battle with Sonic and the [[Gaia Colossus]] ([[Chip]]'s transformation) that it fully regained its lost powers and at last became Perfect Dark Gaia.

Finally having become complete Perfect Dark Gaia, the beast was now ready to cast the Earth into darkness and destroy the planet, but it still had Sonic and Light Gaia standing in its way of achieving total victory. In the following final battle, [[Sonic]] used the [[Chaos Emeralds]] to [[Super transformation|transform]] into [[Super Sonic]] and engaged Perfect Dark Gaia alongside the Gaia Colossus.

At the end of the battle, Perfect Dark Gaia was pierced through its middle eye by Super Sonic and fell defeated into the Earth's core, where it once again returned to its eon-long sleep, and its dark energy that had been covering the Earth dissipated.

== Powers and Abilities ==
Perfect Dark Gaia possesses the same powers as its premature form, such as firing energy beams, being able to pick up molten magma and control dark energies. However, due to having reached full maturity, it is now able to use its powers in a more refined and focused way.

In this form, Perfect Dark Gaia has enough physical strength to tear apart and effectively shattering an entire planet. It can as well manipulate its energies to form a hyper-energy shield around itself with its snake-like tentacles that not even Super Sonic can break through, with the only way to bring the shield down being to destroy its tentacles. It can also launch purple orbs at the size of Sonic in certain formations, pick up and throw large blocks of magma with levitation, rather than using its hands, and can launch its energy beams at a much faster rate. Also, it does not lose focus on charging these beams when it is attacked, unlike its earlier form.

As Perfect Dark Gaia, its weak points remains its various green eyes, like its earlier form, which are the primary target of Super Sonic during his battle with it.

== Battle ==

=== Wii/PS2 ===

[[File:Sonic_Unleashed_-_Wii_-_Dark_Gaia_Perfect_Dark_Gaia|thumb|right|300px|Perfect Dark Gaia Wii/PS2]]The battle is pretty much like battling [[Alf-Layla-wa-Layla]] when Perfect Dark Gaia attacks, using the claws and energy blasts. As usual, Super Sonic needs to gather rings or he dies. The object of the game is to gather rings and use them to perform the Super Sonic Boost and damage Perfect Dark Gaia's eyes one by one. However, each eye is defended by a number of floating rocks. When five eyes have been defeated, some rocks start moving in straight lines. The energy blasts can be deflected by pressing the x button at the right time. Doing so will stun Perfect Dark Gaia, allowing you to collect more rings. The middle eye is the last one to destroy but it is always closed. It only opens if all six other eyes are damaged. After defeating the middle eye (with exclusively moving rocks defending it) the level ends and the final cutscenes/credits play (if you are beating him for the first time.) Otherwise, after the ranking screen, you are instantly whisked back to the level screen.

The time needed to S-Rank Dark Gaia/Perfect Dark Gaia is 7:30, total. Anything less gives a C-rank.

=== 360/PS3 ===

[[File:Sonic Unleashed - 360 - Perfect Dark Gaia|thumb|right|300px|Perfect Dark Gaia 360/PS3 ]]This battle is much more complex than the other version. This version doesn't really tell you much of the rules. Unlike other final boss battles in the Sonic series, Super Sonic is given a life gauge instead of a [[ring]] counter, which is increased when gathering rings and depletes when Super Sonic is hit by floating rocks or Perfect Dark Gaia's attacks. If Super Sonic's life gauge is emptied, the player will lose a life. In this fight, the player primarily controls Super Sonic, while playing as the Gaia Colossus during one quick-time event.

In the beginning of the fight, Perfect Dark Gaia sets up an enormous shield that Super Sonic can't break. Super Sonic and Chip (in his Gaia Colossus form) begin by advancing toward Perfect Dark Gaia, dodging the rocks and energy orbs. It is also important to gather up as many rings as possible with the [[Super Sonic Boost]] to boost Sonic's life gauge, as there will be no other rings available after reaching Perfect Dark Gaia. After dodging the rocks, Super Sonic and the Gaia Colossus will reach the borders of the shield. Chip goes through the shield and distracts Perfect Dark Gaia, while Super Sonic goes and destroys the source of the power for the shield, which appear in the form of serpent heads that extend outside the force field. These serpent heads can be destroyed by making Super Sonic boost into them repeatedly, but watch out for nearby rocks, which will cause you to take damage if you don't avoid them. Chip has a life gauge as well, so you must destroy the shield before Chip's life gauge is gone or you lose a life. Sometimes, Chip goes down and Perfect Dark Gaia starts to attack Super Sonic through the force field while the player tries to destroy the shield. It mainly attacks by shooting a large laser or calling several large rocks from the magma and throwing them at Super Sonic. Chip will eventually rise at some point and will try to distract Perfect Dark Gaia again, allowing the player to focus on destroying the shield again.

Once the shield is down, Perfect Dark Gaia grabs Chip with its six arms and starts to fire its laser to destroy Chip. Super Sonic goes out to save Chip by boosting into all six arms, which is done in gameplay by completing a quick-time event, where Super Sonic has to land one hit on each of Dark Gaia's arms. After that, Chip is freed and leaves Perfect Dark Gaia in agony, but it still had enough energy to shoot its laser at Chip. Chip takes heavy damage from the laser, but withstands and manages to negate it (by pressing 60 buttons in 10 seconds on the controller). Once Chip negates it, he punches and directly hits Perfect Dark Gaia. Super Sonic then comes and finishes off Perfect Dark Gaia by flying through its middle eye. The level immediately ends after that.
===Music===
[[File:Sonic Unleashed Final Boss - Perfect Dark Gaia|thumb|left|350px]]{{Clear}}

==Trivia==
*Perfect Dark Gaia is one of the two characters with the "perfect" prefix in their names, the other being [[Perfect Chaos]]. Both of these character are final bosses.
*In ''[[Sonic Colors]]'', at the beginning of Act 6 of [[Asteroid Coaster]], it looks like the roller coaster is coming out of a rock or planet that is shaped like Perfect Dark Gaia's head.
*At the beginning of the 360/PS3 version, the fight against Perfect Dark Gaia is similar to ''[[Sonic & Knuckles]]''' [[Doomsday Zone]] (Avoiding asteroids and collecting rings).
*Perfect Dark Gaia bears a striking similarity to the God of Darkness from ''The Chronicles of Inotia: Children of Carnia''. Both have a similar physical appearance, both draw strength from negativity and Chaos in humanity, and both seek to destroy the world.
*The lava during the boss fight is noticably brighter in-game,while in the cutscenes it seems to be darker and gives off less light.

==Gallery==
===Cutscenes===

<gallery orientation="none">
Darkgaiatransform.png|[[Dark Gaia]] transforming into Perfect Dark Gaia
Pdarkgaiav1.png|Dark Gaia having become Perfect Dark Gaia
Pdarkgaiav2.png|Perfect Dark Gaia ready to face Super Sonic and the Gaia Colossus
Pdarkgaiav16.png|Perfect Dark Gaia getting pierced by Super Sonic
Pdarkgaiav17.png|Perfect Dark Gaia defeated
Pdarkgaiav18.png|Perfect Dark Gaia being resealed inside Earth's core
</gallery>
===PS3/Xbox360 Screenshots===

<gallery orientation="none" captionalign="left">
Pdarkgaiaprofile.png|Perfect Dark Gaia's profile on the PS3/Xbox360 version of ''Sonic Unleashed''
Pdarkgaiav3.png|Perfect Dark Gaia at the beginning of the battle
Pdarkgaiav4.png|Perfect Dark Gaia setting up its force field
Pdarkgaiav5.png|Perfect Dark Gaia surrounded by its force field
Pdarkgaiav6.png|Perfect Dark Gaia facing Super Sonic
Pdarkgaiav7.png|Perfect Dark Gaia turning to the Gaia Colossus
Pdarkgaiav8.png|One of Perfect Dark Gaia's snake-shaped tentacles
Pdarkgaiav9.png|Perfect Dark Gaia after losing its force field
Pdarkgaiav10.png|Perfect Dark Gaia grabbing the Gaia Colossus
Pdarkgaiav11.png|Perfect Dark Gaia charging its laser
Pdarkgaiav12.png|Perfect Dark Gaia in pain after Super Sonic's attacks
Pdarkgaiav13.png|Perfect Dark Gaia about to fire its laser
Pdarkgaiav14.png|Perfect Dark Gaia being attacked by the Gaia Colossus
Pdarkgaiav15.png|Super Sonic charging at Perfect Dark Gaia
</gallery>

===PS2/Wii Screenshots===
<gallery orientation="none">
Pdarkgaiawii.png|Perfect Dark Gaia as it appears on the PS2/Wii version
perfectdgv1.2.png
perfectdgv1.3.png|Close-up on Perfect Dark Gaia
perfectdgv1.1.png|Perfect Dark Gaia getting struck by Super Sonic
perfectdgv1.4.png|Perfect Dark Gaia's Claw Attack
perfectdgv1.5.png|Perfect Dark Gaia revealing its central eye
</gallery>


{{Sonic}}{{Template:Dark Gaia's minions}}an
[[Category:Antagonists]]