Shadow World

"Shadow World" (宇宙からの脅迫) is the thirty-sixth episode of Sonic X as well as the fourth episode in the Sonic Adventure 2 adaption arc.

Japanese version

 * Sonic Drive - Opening theme
 * Hikaru Michi - Closing theme

English version

 * Gotta Go Fast - Opening theme (USA and CAN)
 * "Sonic X" - Opening theme (AUS, NZ and UK)
 * Gotta Go Fast (shortened) - Closing theme

Summary
Shadow transports Chris to a secret orbiting colony built by Eggman's grandfather, Professor Gerald Robotnik. Scarlet and Stewart search for Mr. Schmitz. Eggman unveils the Eclipse Cannon and threatens the President that he'll use it unless the population surrenders. Knuckles battles Egg Golem while Tails adapts the X-Tornado to fly into space to rescue Chris.

Dubbing changes

 * Shadow's flashback to the ARK running with Maria ends when she presses the lever to launch the capsule down to Earth. In the Japanese version her body is seen hitting the floor after pulling the lever.

Difference between Sonic Adventure 2 and this episode

 * 1) In Sonic X, since the rest of the villains are on Space Colony Ark, Bokkun activates Egg Golem instead of Eggman in Sonic Adventure 2.