For those new to emulation, here is a safe, legal guide to running PSP games on your Android phone.
Step 1: Download PPSSPP from the Official Source
Step 2: Obtain Legal Game Backups
Step 3: Configure for Best Performance
Step 4: Load and Play
A card/strategy spinoff featuring Nathan Drake.
(Note: Neither of these are "Uncharted 2." Uncharted 2 is impossible to emulate on Android via PPSSPP due to PS3 architecture.)
Open PPSSPP > Settings > Graphics:
Performance Hack:
Go to Settings > Tools > Developer Tools → Enable "CPU Multi-threading" (Speeds up heavy games by 15-20%).