Con of Rath (2010)

Zaw-Veenull, a Luoadan Ambassador asks Ben to deliver their Crown Prince Tiffin to Jarret in order to keep peace between the two species. Shortly after their trek begins in space, the Omnitrix malfunctions and turns Ben into an Appoplexian named Rath who wants to fight anything that breathes. The worst part is that Rath can't change back into Ben. Rath keeps picking a fight across the galaxy with anyone who crosses their paths and things don't look good as they approach the Pantaphage homeworld on a mission of peace. During their trek the team encounter's various villains they've faced in the past the Vreedle Brothers , Vulkanus, and the Incursions. When they finally reach Pantaphage, they discover that Tiffin is a meal for Jarret after which Rath jumps down his throat, rescues the Tiffin and threatens Jarret to never attack the Luoadans. After returning the Tiffin, Kevin revealed that the Tiffin was the one who was causing the malfunction, which has Ben about to beat up Kevin as Rath.