Koal is one of the main antagonists in Dual Strike. He is superior in rank to Jugger, appears to be equal in rank to Lash, but below Hawke, Kindle, and Von Bolt. His most notable battles are when he and Lash use a Black Arc to defend the first Black Crystal, his attempt to assassinate Hawke and Lash, his attempt with Kindle to defend the first Black Obelisk using the Black Onyx, and his final battle where he and a clone of Kanbei reactivate the Twin Crown Volcanoes.