Red Rex

"These powered-up Rexes are... stil not very strong. Try wielding one in each hand as dual weapons."

- Description of the Little Rexes in Sonic Unleashed (PS2/Xbox360)

The Red Rex is one of Dark Gaia's minions that appear in Sonic Unleashed and are powered-up versions of the regular Little Rex. They are less numerous than their Rex relatives, but are much more agressive. They only appear during the game's nighttime stages.

Overview
The Red Rexes and the rest of Dark Gaia's minions came into being when their origin source Dark Gaia fell apart due to its premature awakening in the beginning of Sonic Unleashed. In the following events, many of its fragments became Red Rexes as the fragments became influenced by people's dark feelings. They first appear in Arid Sands Act I: The City of Sand on the PS2/Wii version and Windmill Isle Night Act 1 on the PS3/Xbox360 version.

While stronger than the Little Rexes, the single Red Rex are still some of the most weakest of Dark Gaia's minions as their attacks do little damage and they can be defeated relatively easily. They compensate for this however, by overwhelming the opponents with sheer numbers.

The regular Rex Rexes are fast on their feet, much faster than the Little Rexes, and they attack by by flinging their jaws open at the foe, much like the Little Rexes. They are however far more aggressive and attacks more frequently, making larger groups of them rather dangerous. They also have much more health than the Little Rexes, which makes them surprisingly difficult to take out quickly. The Red Rexes commonly appears alongside the Little Rexes cousins, but has also been known to appear in groups of their own. Since Sonic the Werehog can easily pick up Red Rexes on the PS3/Xbox360 version, they make for great melee weapons and throwing objects.

The Red Rexes and the rest of their kind were later refused with Dark Gaia to complete the beast. After transforming into Perfect Dark Gaia, the beast was sealed inside the planet's core.

Appearance
The Red Rexes are basically identical to the Little Rexes. These small creatures look like a cross between a bulldog and a Tyrannosaurus Rex, complete with stubby legs, tiny arms, and a rather large head with big jaws in comparison to their bodies. On their backs they have small spikes and emit purple smoke. Their skin is colored neon red and their markings glows in a cyan color.