What the hell even is Jumbo Josh l Garten of Banban in Battle Royale!?

They may have a toy, but we have a green gorilla (God that was probably cringe). Battle Royal! is a Fan-made Death Battle series where I do my best to research data necessary to decide a victor between two fictional characters, with previews about the fighters analyzes coming out before the full episode with a hint of the person their fighting at the end of the video