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FuzzyWulfe
Since: Nov, 2010

I swear the title of the anime had "Hell" in it. It was a mecha movie from about the 90s where the mecha was almost impossible to defeat. I don't remember the story, but the mecha could be damaged but repaired itself by replacing damaged parts with alternate universe versions of itself. It similarly replaced spent ammo by pulling it from other universes. I know there's a page here for it, but I can't think of the right search terms to find it.