In Godzilla: Final Wars, Gigan is an ancient cybernetic monster that was sent to earth by the Xiliens thousands of years ago, where he was defeated by Mothra and subsequently mummified. In the year 20XX, Gigan's mummified corpse was discovered by the Earth Defense Force, and the monster was later activated by X during the Xiliens invasion, during which time he encountered and fought Godzilla but was quickly defeated. After receiving additional enhancements, he was sent out again to assist Monster X in the final confrontation against Godzilla, however Mothra arrived to Godzilla's aid. Gigan fought Mothra once more, however the two were killed in Mothra suicide attack.

Classification: Cybernetic Space Dinosaur

Powers and Abilities: Superhuman physical characteristics, immortality (Types 1 and 2; Can function even if decapitated), large size(Type 2; 120 meters), cyborgization(Full), flight, infrared vision, energy manipulation, energy projection/explosion manipulation, Danmaku (With laser and shotgun blast), natural weaponry(Beak and tail), weapon mastery, homing attack (With bladed Slicer)

Attack Potency: Multi-Continent level (Fought on par with Godzilla and Mothra. Comparable to Monster X)

Speed: Subsonic movement speed, Supersonic+ Flight Speed in the atmosphere(Can fly at Mach 3), Relativistic+ Reactions and Combat Speed (Kept up with Godzilla)

Lifting Strength: Class G(Scaling from Godzilla)

Striking Strength: Multi-Continent level

Durability: Multi-Continent level(Survived multiple atomic rays from Godzilla on multiple occasions)

Stamina: Superhuman

Range: Tens of meters by sheer size, hundreds of meters with ranged attacks

Standard Equipment: Buzzsaw, blades, bladed slicer, etc

Intelligence: Average

Weakness: None notable

Notable Attacks and Techniques:

•High-Powered Eye Laser: Gigan can fire an accurate red laser from a cannon located above his eye.

•Cluster Light Ray: Gigan's eye can shoot out an attack very similar to the red eye laser. The Cluster Light Ray starts out as a single beam that then splits into many smaller ones.

°Shotgun Blast: A heavily inaccurate version of the Cluster Light Ray that immediately scatters.

•Buzzsaw: Gigan has a buzzsaw on his stomach that he uses to saw opponents.

•Grappling Cables: Gigan can fire four grappling cables, two from each of his appendages. They have a range of at least hundreds of meters. Gigan can use these to pull his opponents into the buzzsaw on his stomach.

•Tail Pincer: Gigan can grab his opponent using the pincer on his tail.

•Chainsaw: After losing his head in battle. Gigan was repaired and had his appendages replaced with giant double chainsaws.

•Razor Discs: Gigan can shoot guided boomeranging razor discs from two hidden slots in his upper torso.