Level-5 has not localized Danball Senki W officially. While fans respect the developers, the reality is that without the patch, the game is unplayable for 95% of English speakers.
Enable “High Memory Layout” (via Recovery Menu -> Advanced) and convert your ISO to CSO (Compressed ISO) at compression level 3. This reduces loading stutter. danball senki w psp rom english patch work
: Some translation patches for this series have been known to crash when interacting with Gashapon (vending) machines. It is recommended to keep a "clean" (unpatched) Japanese ISO to bypass these sections if they freeze. Level-5 has not localized Danball Senki W officially