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Streaky gained superpowers after exposure to Kryptonite that had been treated with chemicals and electrocuted. He tried to blow up Supergirl's school, and then escaped in a space rocket when he was stopped. He then decided to make Supergirl his pet, saying he found her interesting.
- 4 Appearances of Streaky (Cosmic Adventures)
- 2 Images featuring Streaky (Cosmic Adventures)
- Quotations by or about Streaky (Cosmic Adventures)
- Character Gallery: Streaky (Cosmic Adventures)