Gigas Shadow

The Gigas Shadow is a Pureblood Heartless that is found in Kingdom Hearts Final Mix and Kingdom Hearts 358/2 Days.

Kingdom Hearts Final Mix
''A Shadow Heartless that just grew. Like a Shadow, it's quite persistent and will chase its target around.'' If it just does the littlest amount of damage to Sora, it will fade out of sheer happiness.

Kingdom Hearts 358/2 Days
These large Pureblood Heartless take the Mega-Shadow attack pattern and add even more muscle. The only way to knock them off guard is to deflect their tackles with a block.

Kingdom Hearts Final Mix

 * Wonderland

Kingdom Hearts 358/2 Days

 * Beast's Castle
 * Wonderland
 * Twilight Town
 * Agrabah

Design
A Gigas Shadow has a vaguely humanoid body structure. It has a round, spherical head with circular, glowing yellow eyes. It also has two long, twisted antennae sprouting out of the top of its head. Each of its hands has three clawed fingers, and its feet are large and lack any discernible digits. With the exception of its eyes, this Heartless's body is completely pitch-black. The Gigas Shadow is identical to the basic Shadow and Mega-Shadow, but is much larger than either of its two relatives.

The Gigas Shadow's name refers to its massive size—"gigas" is a Latin word meaning "giant"—and its otherwise identical appearance to a normal Shadow.

Kingdom Hearts Final Mix
Gigas Shadows only appear after many waves of Shadows have been defeated in the Bizarre Room. Gigas Shadows attack the same way normal shadows do with the exception that they do not become flat and move along floors. They are large and have much more HP than other heartless in the area. They can quickly surround and swipe at Sora. This can be avoided by moving into a corner on an elevated surface where the only a few Gigas Shadows can attack at once. If a Gigas Shadow manages to strike Sora, it will escape the fight, reducing the odds of winning a rare Synthesis material.