These are Creations made by Proffeca Selenia with the help of Dr. Eggman and Dr. Finitevus. G.U.N has been trying to find these creations and destroy them thinking they are harmful to the human race. Shadow the Hedgehog, and Espio the Chameleon dislike the idea of having them destroyed, But also dislike them since they have turned sides with Eggman.