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Eye Spy

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"Eye Spy" is the seventy-fourth episode of the anime series, Sonic X. It first aired on 14 April 2005 and 8 April 2006 in France and the United States respectively.


Japanese version

English version

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


After Cosmo discovered she has a codename White Seed and the Metarex are monitoring what she hears and sees, her amulet starts shining and Cosmo screams. Then out of nowhere, the Blue Typhoon is transported to a deserted planet. Meanwhile, Sonic and Chris are finally recovered from being almost killed by Shadow in their previous battle.

Everyone is surprised after they land on the deserted planet. Cosmo is knocked out while the team discover that Cosmo's brain is emitting a signal to the Metarex, they plan on trying to eliminate the signal, except that the signal is connected to the part of her brain that translates sounds and sight; thus, Cosmo will most likely lose her eyesight and hearing if the chip is removed. While Tails and Chris are torn about this, Knuckles pushes for the surgery.

Meanwhile, Amy starts searching for Sonic, but ends up bumping into Rouge. They both discover that this planet is not only Cosmo's homeworld, but the Metarex's as well. They also discover that male versions of Cosmo's people were able to transform into huge dinosaur-like beings to protect their planet from an alien invasion. However, a few of them wanted to be able to completely destroy the alien horde, and so crystallized their world's Planet Egg in order to keep the transformation from sapping their energy. They eventually led to the abandonment of the planet and transformed into the Metarex.

Cosmo, horrified by the fact that the Metarex are using her to spy on them, intends to leave, but Tails reassures her that they all will help her defeat the Metarex. Sonic and the rest of the gang also support the new resolution, and they all are ready for the final attack on the Metarex. Shadow is disgusted by this and tries to leave. Chris tries to tell him that he needs to help them, yet he keeps refusing, but then Bokkun arrives, telling Shadow that Eggman has been captured by the Metarex. At the same time, Dark Oak has seven Chaos Emeralds and preparation for Forestation is about to begin.

Eyecatch Cards

Title in other languages

Language Title Translation
Japanese ロスト・プラネット Lost Planet
French La planète perdue The lost Planet
German Das Auge der Spionin The Eye of the Spy
Italian Uno per tutti One for all
Spanish El planeta perdido The lost planet


  • In the Japanese version, after Knuckles knows about Cosmo's people as same as Amy and Rouge, he does not understand why the same clan has a different reason to make something correct.


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