Terminal Velocity

""CRITICAL SYSTEMS FAILURE! Repeat, CRITICAL SYSTEMS FAILURE! All attraction access is temporarily suspended. Please evacuate the park via the emergency exit ahead. THIS IS ALL YOUR FAULT!!!""

- Dr.Eggman

Terminal Velocity is the final stage of Sonic Colors. Terminal Velocity is a large section of the giant structure that bridges Eggman's Incredible Interstellar Amusement Park to Earth. Sonic has to travel down it to reach the space elevator to Earth. Eggman stops Sonic right at the elevator. Realizing what he must do, he pushes Tails into the elevator without him before the battle against the Egg Nega Wisp. After it's over Eggman is sucked into a black hole the energy created, as Sonic runs away from it and runs down to meet Tails back at Earth.

Act 1
Act one begins with Sonic racing down the huge space pathway as he is being chased by the Aero Chasers, an Interceptor, and Motobugs. The act doesn't officially end, the screen instead goes white.

Boss
Egg Nega Wisp serves as the final boss of Terminal Velocity, the stage starts Sonic and Dr. Eggman running in a circular direction turning to the left. Eggman first uses Frenzy to put some distance between him and Sonic. He then attacks by using Laser, Spikes, or Cube to try to hit Sonic, having to suck up more Wisps to use the Color Powers. Sometimes, he goes behind you and not only will he use normal attacks, but he might use some combo attacks, Like Spikes and Cubes at the same time and the other combo is Laser and Cubes at the same time. When he gets close, the player must use a Homing Attack on one of the arms, working up to the cockpit, where the player can use a Homing Attack twice to damage the Egg Nega Wisp. The player can also boost for a third hit. After taking a couple of blows, the machine will hesitate to attack when the announcer proclaims a new ability where Sonic used all the Wisps' abilities at once, called the Final Color Blaster, and Sonic uses this attack to destroy the machine and send Eggman flying.

Act 2
Act 2 is only 30 seconds long. It's just a straight shot down the rest of the pathway after Eggman is defeated. After Sonic beats Eggman, a black hole appears and engulfs Eggman, while following right behind Sonic. The only threat in the Act is the stage, crumbling underneath Sonic's feet, either having to side-step or jump to avoid falling. Nonetheless, Sonic fails to outrun the black hole and passes out, with the Wisps helping him back to Earth.

Trivia

 * Terminal Velocity is the only stage where the boss comes before the second act.
 * Acts 1 and 2 have no ending Goal Ring or Wisp Capsule.
 * Act 2 is the shortest act in the entire game; only lasting 30 seconds.
 * Terminal Velocity is the only stage where both Acts fade to white.
 * Terminal Velocity among other things is the shortest stage only having 2 Acts and a boss in the Wii version.
 * The Egg Nega Wisp is differently designed in Wii and DS versions. On Wii, the Egg Nega Wisp has a head and two arms. On the DS, it has a head and a tail.
 * On the Terminal Velocity map there are white space-themed, sword wielding Egg Pawns that are supposedly the themed Egg Pawns for this stage. However, you never fight them in any of these stages. They can be seen floating by the platform you are running on in Acts 1 and 2 and, oddly enough, they appear to be stationary while wiggling around in the background.
 * Although this level takes place on the space elevator anchoring Tropical Resort to Earth, The design of the elevator is noticeably different in gameplay, than that of the cutscenes.
 * Terminal Velocity bears a resemblance to the Final Rush stage in Sonic Adventure 2.
 * The term "terminal velocity" is used to describe the maximum speed gained from falling.
 * While there are no PA announcements here, in the cutscene after the Egg Nega Wisp fight, a passing loudspeaker being sucked into the black hole says "At Eggman's Incredible Interstellar Amusement Park, you can feel comfortable knowing your safety is our number one priority." to which Eggman ironically tells it to shut up before being sucked into the black hole.
 * This is the only world of the entire game which doesn't have 2D areas. This is also the only world in which you can use the Quick Step permanently. Additionally, there are no checkpoints neither red rings in any act. This is also the only world which haves fewest acts in the game.
 * At the end of the boss battle, Eggman's pod explodes and has Eggman's emblem as a fireworks display. The player actually earns points for the pod exploding.
 * The theme of Act 1 sounds similar in places to the Egg Emperor boss theme in Sonic Unleashed.