In 2014, the PSP struggled to render 3D heads with enough polygons to look human. To solve this, Konami’s artists used aggressive texture mapping. Player faces were essentially flat JPEGs stretched over a low-poly egg shape. The famous "real face" feature for star players meant that while Messi had a unique texture (eyes, nose, mouth painted precisely), generic players had a library of 30 "face textures" reused across thousands of athletes.
Before you start downloading random files, you need to understand the technical backbone. PES 2014 stores its visual data in .GIM (Graphics Image) files. This is Sony’s proprietary format that contains: pes 2014 psp textures