Shadow the Hedgehog

"Shadow can move from place to place without detection. He will vanish and attack again, then appear again. Watch out for his ultimate speed!"

Shadow the Hedgehog (シャドウ・ザ・ヘッジホッグ Shadō za Hejjihoggu) is a protagonist in Sonic Battle. Shadow was created as the "Ultimate Life Form" (究極生命体 Kyūkyoku Seimeitai) by Gerald Robotnik, using the DNA of Black Doom, and is the final result of Project Shadow.

In Sonic Battle
In Sonic Battle, Rouge the Bat saves Shadow while they are investigating Dr. Eggman's secret base and takes him back to her home. Shadow talks about how the people of Earth must destroy him and Emerl if they ever want peace, still believing that he is a weapon. It is revealed, however, that he ultimately has the heart and soul of Maria Robotnik, implying he could not be the enemy of humanity. However, Gerald Robotnik's journal entries in this game contradicts truths found in Sonic Adventure 2 and Shadow the Hedgehog.