King KO is a Koopa in Super Paper Bros. as an Agent of Shadow. He is a Dark Koopa, that has very pale skin. He duels Kommando in a battle on top of the Shroom City skyscraper. Kommando wins and King KO falls to his doom. Kommando later expresses regret for these actions. King KO's real name is Kaleb Omen".
|Agents of Shadow|
|General Phai | Missile Mike | Dye Guy | Haz-Mat | Wrath Guy | Yozhi | Sycho | Dark King | T-Rex | Boowzer | Blaze | King KO | Black|