Appearing in packs at a time, these mini-monsters go in for the tackle. It's thought that each of the quiet sighs and gossipy insults of everyday life are affected by the power of Dark Gaia to form a new Fright. — Description, Sonic Unleashed
The Dark Frights mostly resemble balloon-shaped birds with small wings, a small knot on the bottom of their body, and a small horn on their forehead. They have dark blue and black skin, and have markings on their body that resemble a face, while their actual black faces with yellow eyes are hidden inside their "mouths".
The Dark Frights' body markings differ in color between the versions of the game; in the Wii/PlayStation 2 version, they are colored magenta, while in the Xbox 360/PlayStation 3 version they are yellow.
The Dark Frights and the rest of Dark Gaia's Minions came into being when Dark Gaia broke apart at the beginning of Sonic Unleashed due to its premature awakening by Dr. Eggman. These fragments were then spread across the earth and became Dark Gaia's Minions, with the Dark Frights amongst them. It is thought that for every quiet sigh, gossip and insult that occurs in everyday life, a Dark Fright is created. They first appear in Apotos Night Act I: Moonlit Town in the Wii/PlayStation 2 version and Windmill Isle Night Act 1 in the Xbox 360/PlayStation 3 version.
The Dark Frights have little health and do not cause much damage, making them amongst the weakest of Dark Gaia's Minions. However, they rarely appear alone and frequently attack in packs to overwhelm the player. The Dark Frights can easily be grabbed by Sonic the Werehog and used as weapons, but they do not cause much damage in the Xbox 360/PlayStation 3 version due to their low density. They also come in a stronger variant called Red Frights.
In battle, the Dark Frights attack by either tackling Sonic at high speed or bouncing on top of him. When not attacking, they move erratically around in the air by rolling which makes their movements hard to predict and target properly.
Upon the reconstruction of Dark Gaia by Dr. Eggman, all of the Dark Frights (along with the other types of Dark Gaia's minions) were returned to the beast, who was later defeated and sealed within the planet's core.
Powers and abilities
The Dark Frights 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 Dark Frights 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.
The Dark Frights are capable of flight, allowing them to float through mid-air in any direction. They are also able to dash through the air at high speed.