She shakes her head. “Custom firmware always has bugs. But…” She smiles. “You can make new memories. Start a new game.”

All Star Yakyuken Battle (also known as All Star Janken Battle

Since the PSP Go lacks a disk drive, you must use Custom Firmware to play backups or imported "ISO" files of these Japan-exclusive titles.

This allows you to run ISO files from your internal memory or M2 Memory Stick.

: To play this title on a PSP Go, users typically use Custom Firmware (like ARK-4 ) to run a digital backup (ISO/CSO) of the game from the system's internal storage or an M2 memory card.

is sometimes preferred because it maintains the "Pause Game" (save state) feature, which can break on higher versions of Infinity.