Little Rex

"These guys will chase you like a dog runs down the mail truck."

- Description of the Little Rexes in Sonic Unleashed (Wii)

The Little Rex (リトルレックス) is one of the types of Dark Gaia's minions that appear in Sonic Unleashed. While they are easily amongest the weakest of Dark Gaia's minions, they always appear in great numbers, making them quite a nuisance. They only appear during the game's nighttime stages.

Overview
The Little Rex and the other of Dark Gaia's minions came into being after their original being, Dark Gaia, fell apart at the beginning of Sonic Unleashed, with many of its fragments becoming Little Rexes. They first appear in Chun-Nan Night Act I: The Floating Shrine on the Wii/PS2 version and Windmill Isle Night Act 1 on the PS3/Xbox version.

The Little Rex alone is rather weak in comparison to the rest of Dark Gaia's minions. They do not cause much damage and can easily be defeated with a few hits. However, they are never alone and always appear in great numbers, which makes them quite troublesome and dangerous for inexperienced players. They also have a stronger variant called Red Rexes.

The Little Rexes can easily be picked up by Sonic the Werehog on the PS3/Xbox 360 version of the game, making them ideal weapons and throwing projectiles.

All the Little Rexes were later returned to Dark Gaia following the beast reconstruction and were then resealed inside the planet's core after Perfect Dark Gaia's defeat.

Physical Appearance
The Little Rexes are small creatures that mostly resemble a cross between a bulldog and a Tyrannosaurus rex with stubby legs, tiny arms, spikes on their backs and rather large heads with jaws that are large in comparison to their bodies. Like the rest of Dark Gaia's minions, they emit purple smoke.

The color of the Little Rex's body differs between the versions of Sonic Unleashed. In the PS2/Wii version, the Little Rexes have blue skin with purple glowing markings, while in the PS3/Xbox360 version, they have green skin with yellow glowing markings.

Powers and Abilities
The Little Rexes are able to move around by either teleporting into an area in a puff of purple smoke, or emerging from black puddles on the ground. As a Dark Gaia minion, the Little Rexes can possess people by latching onto the deepest, darkest part of the heart, and generate despair, negative emotions or even erratic behavior that are completely opposite to the person's personality.

Despite their size, the Little Rexes are rather fast on their feet, allowing them to easily keep up with Sonic the Werehog's normal running style. They also have powerful jaws, giving them a powerful bite, though their bites hardly does any damage to opponents such as Sonic the Werehog.

Attack Patterns
When the Little Rexes first apepar, they will shake their head from side-to-side, similar to looking for prey. When they see the player, the Little Rexes will squeal, jump upwards and run towards towards the player. When chasing the player, the Little Rexes will pursue the player everywhere on the field, and will not stop until they catch up to the player or the player leaves the area. They usually attack their foes straight-on by flinging their jaws open at them in a swift motion.

Trivia

 * The cry that a Little Rex lets out when defeated is very similar to that of a guitar riff.