Yellow Wisp

The Yellow Wisp (イエローウィスプ) is a type of Wisp which first appeared in Sonic Colors. When their homeworld was move to Earth by Doctor Eggman, the Yellow Wisps and the rest of their race were threatened to be enslaved by Eggman, who wanted their Hyper-go-on to control the mind of everyone on Earth. Fortunately, the Yellow Wisps and the rest of their race were all saved thanks to Sonic the Hedgehog.

Physical Appearance
The Yellow Wisp has a triangular head with one orange eye in the middle. The head is covered in orange and yellow stripes. It has three tentacles stemming from the head. Its appearance resembles that of the White Wisp, but it has no antennae and a different-shaped head. As the Yellow Drill, Sonic resembles a yellow drill-head.

Personality and Traits
Yellow Wisps are very energetic and playful. They are naturalistic by nature and are very fond of earth and water. Sonic also compares the Yellow Wisps to Knuckles because of their energetic nature.

Ability and Powers
As Wisps, the Yellow Wisps are able to float in midair at will, serving as their main method for movements.

The Yellow Wisps are able to generate and store their own unique variant of a powerful energy known as Hyper-go-on inside their own bodies, which is their lifeforce. It is unclear to what extend they can use their own Hyper-go-on, through they have been shown being able to use it to revert Nega-Wisps back to normal and carry objects through levitation.

The Yellow Wisps are able to enter the body of other beings, as if they are intangible, and lend their Hyper-go-on to the being in question. In Sonic's case, when using a Yellow Wisp's Hyper-go-on, it transform him into the Yellow Drill, which gives him the ability to drill underground to go through water like a torpedo.

Archie Comics
The Yellow Wisps made an appearance in the Archie Comics' adaption of Sonic Colors, in Sonic the Hedgehog #219.

In the comics, some Yellow Wisps and a few other Wisps were chased by Orbot, Cubot and a pack of Egg Pawns, but one Yellow Wisp was saved by Sonic. After Sonic destroyed the Egg Pawns in a flash and send Orbot and Cubot running, a Yellow Wisp joined Sonic, Tails, Yacker and some other Wisps, as Sonic ventured out to save the Wisp race from Eggman.

Trivia

 * An image of the early version of the Yellow Wisp can be found inside the game, showing them without stripes, each tentacle being in the front and not two in front and one back, and with a blue eye.
 * In the DS version of Sonic Colors, a Yellow Wisp asks Sonic to 'play' with him in the water, which made Sonic nervous because of his fear of water