Nega-Wisp Armor

"This robot is special. He's powered by the energy from your little friends. He is invincible. So I'd say it's been nice knowing you... but it hasn't."

- Eggman

The Egg Nega Wisp, also known as the Nega-Wisp Armor in the DS version, is the final boss of Sonic Colors Wii version, this boss is the first Modern Sonic final boss not to feature a super transformation and to have Eggman piloting a machine. The Egg Nega Wisp is a giant piloted by Dr. Eggman, who uses the powers of the Wisps like Sonic, and can combine them at his will. Because the Egg Nega Wisp drains Hyper-go-ons quickly like the Mind Control Ray, Eggman needs to harvest Wisps constantly throughout the battle.

Appearance
The Egg Nega Wisp resembles a large robotic purple Wisp with sharp pointed spines along the body and a large one over the cockpit, clear colored frowning eyes, a large razor sharped mouth with two sharp spines on either side facing upright, a cannon inside that fires purple spikes, small stubby legs around the front and sides, a long tail out the back, and two large tentacles with sharp pincers on each end that contain a pair of purple eyes making the pincers look more like mouths which it uses to fire lasers and cubes from and also to harvest Wisps from nearby with a vacuum in the hands that sucks them into large tanks located on it's back. The tanks change color depending whatever action it is performing. The cockpit is located at the front just above its eyes with a red arrow (resembling a nose) in front pointing down towards its mouth.

The Nega Wisp Armor in the DS version looks similar to the Egg Nega Wisp of the Wii version, with a few differences. Instead of having two tentacles for arms, it has one tentacle for a tail. The Nega Wisp Armor can detach the pincher on the tail use it to perform darker versions of the color powers. It also has a cannon hidden in its mouth that it uses for specific Wisp powers. For example, the cannon fires missiles at Sonic when using the Violet Void power. The cannon can also fire a large blast when it loses all of its Wisp powers.

Battle
Because the Egg Nega Wisp is powered by Wisps, or more specifically, Nega Wisps, it uses the color powers of the Wisps in battle. It fires the Blue Cube power to launch Cubes at Sonic, the Pink Spikes power to launch Spike balls on the ground, and the Laser power to fire Laser from its hands. It also combines the Cube and Spike powers together to make spikes attack you, and the laser power with the cube power to make the laser reflect at the cubes and hit you. It might use Frenzy to get far from Sonic,and possibly make it activate its wisp powers, due to at the beginning of the battle you hear the announcer say "Frenzy!" and probably, although its not proven, that it uses Hover and/or maybe Rocket to float. It is unknown how the Drill power is used, considering the fact that it uses almost every Wisp to make it function.

When it needs to use another attack, the arms will suck up nearby Wisps into itself through the giant hands. The only way to defeat it is to perform a homing attack chain going up its arm and strike at Eggman in the cockpit. At various points during the boss battle, Sonic will recover the color Wisps that Eggman used to his side, but they merely float alongside him. When the mecha is on the brink of defeat, Sonic combines the color powers of all the Wisps he's saved to perform a combination attack called the Final Color Blaster, which defeats the Egg Nega Wisp and sends Eggman flying.

Trivia

 * Unlike the Wii Version, in the DS version, when Sonic saves a colored Wisp from the Egg Nega Wisp, it loses the power of the colored Wisp; and when all the Wisps are saved, Eggman uses a suicidal assault by firing a black hole cannon that was hidden in the robot's mouth.
 * Unlike the Wii Version, the DS version's Nega-Wisp Armor has only one arm instead of two.
 * During the Wii battle, the announcer sounds perfectly normal, but in the DS version, the announcer gets an eerie, distorted voice. The latter is probably done to imply the "Nega" aspect of the Wisps. Also, despite the Nega Wisp Armor using Nega Wisps, the announcer does not add Nega before the Wisp power, like "Nega Laser!"
 * Unlike most other final bosses, this boss has an extra stage after it.
 * This is the only final boss in the modern era to feature as one of Eggman's robots.
 * In the Wii version, boosting into the Egg Nega Wisp after a Homing Attack will deal extra damage and will make it drop more rings.
 * The Egg Nega-Wisp is similar in appearance to the Sand Scorpion from Sonic and the Secret Rings. Interestingly enough, their attack methods are similar as well, as with the Sand Scorpion you had to use the Homing Attack to move up its tails to hit the eye on its back, whilst with the Nega-Wisp Armor, the method is the same except performed on the arms to reach the head instead.
 * The Cyan Laser is the only Color Power that the Egg Nega Wisp uses in both versions of the game.
 * In the DS version, the Cyan Laser attack bounces off walls similar to how Sonic uses it.
 * When the Egg Nega Wisp recharges, it seems to suck up only White Wisps.
 * You can attack the Egg Nega Wisp a second time by boosting into its body after attacking the head, similar to the Egg Beetle. You also gain rings to collect and 1 Wisp.
 * In the Wii version, before the battle starts, if you walk into the help marker to the left of the path, you can actually hear Tails talk, but briefly, and barely, talk in understandable language, warning Sonic that the Egg Nega Wisp is very powerful and that Eggman is dangerous in the Egg Nega Wisp.
 * In the DS version this is not the true final battle of the game; the Mother Wisp is fought afterwards, when Sonic has collected all the Chaos Emeralds.
 * In the Wii version, Eggman presses a button at the same time as Sonic uses a Homing Attack on the Egg Nega Wisp's head. This makes it seem as if the button cues Sonic's Homing Attack.
 * In the Wii version, a translucent red circle is occasionally visible in the middle of the Egg Nega Wisp's left eye, possibly as a targeting system.
 * In the Wii version, the music is split into two phases but the battle is not. Phase 2 begins after the Pink Wisp has been collected.