GameCube saves are stored on memory cards compatible with the region of your console. One important nuance: Japanese GameCube games sometimes attempt to reformat memory cards that contain saves from other regions. As one importer noted in a forum discussion, "People have told me before that I need a Japanese GCN memory card if I want to save anything".
(instead of X) to confirm selections, as is standard for Japanese PS2 titles. Platform-Specific Saving Tips
In Dolphin, navigate to Tools > Memory Card Manager . battle stadium don save data
The game cancels the save, and you lose everything you just did.
Dedicate a specific virtual or physical memory card exclusively to Japanese games. In Dolphin, set your Slot A memory card to "Japanese" in the device settings before launching the game. PCSX2 Save Read Failures GameCube saves are stored on memory cards compatible
Ensure that the save data is loaded into (or Player 1's memory card slot). The game prioritizes Slot 1 for loading unlocked system data, characters, and custom options. 🎯 Summary
Do not risk losing your hard-earned unlocks. Use these methods to secure your data. Method A: Physical Hardware to PC (instead of X) to confirm selections, as is
To get a 100% save onto an actual console, you will need modified hardware or specific retail tools.