Mondo was the latest recruit to Generation Next when they were sent to the Seattle Core to rescue Illyana Rasputin, the younger sister of Colossus
. While his teammates found their own way into the Core, Mondo managed to sneak in by using his unique abilities to blend into the walls. While in the Core, Mondo managed to save a young girl from a fatal plunge. The young girl begged Mondo to rescue her from the Core but Mondo discovered Illyana nearby and promised the young girl he would come back for her. He rescued Illyana by digesting her in his stomach but the guards became suspicious of his activities and attacked him. After defeating the guards, Mondo met up with Chamber
and Skin, two of his teammates from Generation Next. However their reunion was cut short after the appearance of Sugar Man
who killed Mondo with his razor-sharp tongue.