The patch does add English voice acting; voices remain in Japanese.
The patch was created by a dedicated group of fans from the Inazuma Eleven translation community (notably contributors on GBAtemp and the Inazuma Eleven Wiki forums). While no longer actively updated (the patch is considered “complete”), community threads still offer troubleshooting for ISO matching, emulator settings, and Wii homebrew setup. inazuma eleven go strikers 2013 wii english patch
Without the English patch, English-speaking players face a labyrinth of Japanese kanji, making team management, special move selection, and story progression nearly impossible. The patch does add English voice acting; voices