Red Deep Nightmare

The Red Deep Nightmare (レッドディープ・ナイトメア) is one of Dark Gaia's minions and a powered-up version of the Deep Nightmare. They only appear on the PS2/Wii version of Sonic Unleashed and are the strongest of the Nightmare variant. They only appear during the game's nighttime stages.

Overview
The Red Deep Nightmares were born when Dark Gaia fell apart in the beginning of Sonic Unleashed. These fragments then spread across the planet, resulting in the creation of Dark Gaia's minions, with some amongst them becoming Red Deep Nightmares.

As more powerful versions of Deep Nightmare, the Red Deep Nightmares are faster, stronger, can deal more damage and have more health than any of their Nightmare relatives, thus making them the strongest of Nightmare variant. In line with the Deep Nightmares' attack pattern, the Red Deep Nightmares possesses no long distance attacks and fight the enemies with hand-to hand combat where they can use their stretchy arms as clubs, and they can guard against assaults rather well.

All the Red Deep Nightmares were later reabsorbed by Dark Gaia, and returned to the planet's core when the beast was defeated.

Appearance
The Red Deep Nightmares closely resembles the Deep Nightmare; they are humanoid lizard-like beings, but are slightly taller than a normal Nightmare. They have thick arms and large spikes on their backs, much larger than the Nightmares', with purple smoke emitting from it. They also have a single horn on their heads, but they are larger and more jagged than a Nightmare's horn and a longer and more jagged tail. Unlike the normal Deep Nightmare however, they have a pinkish-red color and their markings glow in a cyan color.