Ultimate

Ultimate (究極体 Kyūkyokutai) is the term used which refers to the 6th (and beyond) stage of Digimon evolution. (Dub: Mega).

(Note: For the dubbed "Ultimate" level, see Perfect. "Kyuukyokutai" is literally translated as "Ultimate Body" or "Final Body")

Ultimate Level Digimon are those who have attained the final stage of evolution. Rarely encountered, these Digimon tend to be extraordinarily powerful. Evolution is still observed, though rarely, to other Ultimate Digimon. Ultimate II is extremely rare, with Ultimate III only having one instance, Imperialdramon Paladin Mode. Ultimate II is sometimes referred to (in V-Tamer Digimon characters only) as "Super Ultimate Body" (超究極体 Chou Kyūkyokutai).

Baby I -> Baby II -> Child -> Adult -> Perfect -> Ultimate (-> Ultimate II/Super Ultimate -> etc.)