Here’s a concise, friendly forum/post you can use to ask for or share an English patch link for Battle Stadium D.O.N. on GameCube:
For nearly two decades, anime fighting game fans have harbored a special affection for a peculiar, chaotic, and brilliant GameCube title that never left Japan: Battle Stadium D.O.N. . Released in 2006, this crossover fighter brings together the heavyweights of Shonen Jump— (the D.O.N. stands for Dragon Ball, One Piece, Naruto). Despite its rough edges, it remains one of the most sought-after party fighters on the Nintendo GameCube. The only problem? It was region-locked and entirely in Japanese. battle stadium don gamecube english patch link