Unlike traditional entries where you control a single general, you can choose a trio of warriors and hot-swap between them mid-battle to execute massive, screen-clearing combo chains. Understanding the English Patch

If you have the original Japanese ISO (ULJM-06097), you can apply the English patch manually:

Even with a partial patch, the game is considered highly playable for veterans of the series who are familiar with standard Musou menu layouts. Key Features of the PSP "Special" Edition