Your or processor to give you exact graphics tweaks.
The first thing you need is the emulator itself. The emulator comes in two versions: a free, ad-supported version and a paid "Gold" version that supports the developers.
Even with the best setup, you might encounter some issues. Here are solutions to the most common problems.
(Optional) You can purchase PPSSPP Gold to support the developer, though the free version offers identical emulation performance. Step 2: Acquire the Game File (ISO)
How to Install and Play NFS Underground 2 on Android via PPSSPP
Set to Buffered rendering to prevent black screens and graphical glitches.