Gerald kintobor Robotnik, Maria Robotnik and Shadow The Hedgehog were in the Ark Shadow was doing tests to help with Maria's disease until an explosion noise happened, Gerald went to see what happened until he saw Terios, his first creation that he had imprisoned for being evil

Gerald: "Terios the prototype.... One of my creations with DNA of chaos" Says in a confused and serious tone

Terios: He says in a serious tone "call me.... Terios The Hedgehog"

He then tries to attack Gerald but Shadow arrives and attacks Terios with a spindashes

Shadow: stands in front of Gerald "Professor who is this"

Gerald: sigh "This is Terios, your older brother...."

Shadow: he is shocked but looks at Terios "Why did you try to attack the teacher!?"

Terios: A purple aura and electrical surrounds him "I don't care, little brother"

Shadow: he gets into a fighting stance and a red, electric aura surrounds him