Series Name
Season 3, Episode 78
Air date 2004
Episode Guide
Crystalized is the last episode of Sonic X.


Christopher Thorndyke flashes back to the point just when the planet with Cosmo on it was being destroyed. Amy, Cream and Cheese are crying their eyes out. Then, Cosmo's spirit appears, saying that she will always be with him, then she kisses Tails good-bye and disappears. Dark Oak is seen following Earthia to peace. Suddenly, the planet begins to expend all of its energy. Sonic tried to use Chaos Control to give everyone a chance to escape, but Shadow punched Sonic in the stomach, causing him to fall out of the sky. Shadow then uses the last of his energy to perform Chaos Control to stop time. Eggman then worries that Shadow may not have survived the Chaos Control he did to save everyone, and he begins to feel some remorse for Shadow. Meanwhile, Sonic approaches Tails with only a seed from Cosmo. Tails, already upset about losing her, finally falls into Sonic's arms, crying as they fly away.

Back on their homeworld, Chris and Knuckles the Echidna have a little discussion about what's next for Chris, and they fall along the lines of where Chris's home would be now that he can't go back. Rouge the Bat is seen in Eggman's ship staring at Shadow's pod. After a run-in with Eggman, Rouge suspects that he knows something about Shadow's whereabouts. Near the end of the episode, Eggman shows Chris an egg-shaped pod that will take him home, but there's a catch: Chris only has three minutes to return home, or else he could be stuck in Sonic's world. Chris has no time to say goodbye to his friends, because the warp between the worlds would disappear if he did. Chris then leaves Sonic's universe in Eggman's pod, but not without a last glimpse of Sonic, who is running to keep up with his good friend. Once Chris is gone from sight, Eggman says that with Chris out of the way, he can continue in his creation of the Eggman Empire. Sonic and co. declare war on Eggman and take off to stop him.