Because the game was only released in Japan, the text—including story dialogue, part names, and menu options—is entirely in Japanese. The fan-made translation patch replaces these assets with English equivalents.
I couldn’t find evidence of a completed, fully playable English patch for Beyblade: Metal Fusion on the PSP. Here’s a quick breakdown: beyblade metal fusion psp english patch
: Look for the translation project on community hubs like ROMhacking.net or specialized Beyblade forums. Open xDelta UI : Select the "Apply Patch" tab. Select Files : Because the game was only released in Japan,
For a walkthrough on how to install the most recent functional translation mod, check out this guide: the text—including story dialogue