If the user is looking for a boxing game on PPSSPP, the only authentic option from the franchise is Fight Night Round 3 .

It is important to clarify that Fight Night Round 4 was never officially released for the PlayStation Portable (PSP)

This is a gray area. The modders who created Fight Night Round 4 for PPSSPP do not sell their work; they distribute it as a fan tribute. However, to play it, you technically need a BIOS file from a real PSP and a copy of the original Fight Night Round 4 (PS3/360) that you own.

Fight_Night_Round_4_PSP_Compressed.zip (Size: 420MB)