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Installing mods for Fight Night Round 3 is not always a "drag and drop" affair. It usually requires rebuilding the game's ISO file.

The Standard Method:

A texture pack that sharpens the game to take advantage of high-resolution rendering on PPSSPP (the PSP emulator). This includes:

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Before proceeding: Modifying Fight Night Round 3 requires using a PlayStation Portable console that is custom firmware (CFW) compatible, or a PSP emulator (like PPSSPP) on PC, Android, or iOS. You must legally own a copy of the game. Downloading pre-modded ISOs of games you do not own is piracy. This article is for educational purposes and for enhancing your own personal, legal backup copies.

While a real PSP has a 480x272 resolution, emulators like PPSSPP can upscale to 4K. The Texture Overhaul mod extracts the raw .GIM files (PSP’s proprietary image format) and redraws them.

Yes. But with caveats.

The PSP version of Fight Night Round 3 is unique. Unlike the console versions which used the right analog stick for punching, the PSP used the face buttons (X, Square, Triangle, Circle) for directional punches while the analog stick controlled footwork. It feels weird at first—like playing a fighting game combo—but once mastered, it is arguably the most portable, tight boxing sim ever made.

A properly modded version gives you: