Download ZArchiver from the Play Store. Open the .7z file inside ZArchiver, select all contents, and click "Extract". Do not try to load the .7z directly into PPSSPP.
Through the PPSSPP Emulator, you can upscale textures to HD quality , far exceeding the original PSP's visual capabilities. System Requirements & Setup Pes 2011 Ppsspp Highly Compressed
A proper highly compressed version retains 100% of the gameplay, commentary, and in-game textures. Beware of "ultra compressed" versions (under 100MB)—these are usually stripped of commentary, cutscenes, or are broken. Download ZArchiver from the Play Store
Set to 1x or 2x PSP for a balance of speed and clarity. Through the PPSSPP Emulator, you can upscale textures
In the PPSSPP menu, enable "Cheats" (if you have a cheat database) to unlock all classic PES teams (Classic Brazil, Netherlands, etc.) immediately.
Experience the atmosphere of the UEFA Champions League , UEFA Europa League , and Copa Libertadores .