This is the most effective way to play the original PC version of NFS Underground 2 on Android. It allows you to run Windows applications on ARM-based devices with full optimization for low-end and high-end hardware.
You won't find this on the Play Store legitimately. Here is the ethical and technical workflow:
It is not open-world like the console version of Underground 2 but uses a menu-based race selection. 2. How to Play the Real NFSU2 on Android
Need for Speed: Underground 2 is a defining street-racing title from the mid-2000s, known for its open-world Night City, heavy car customization, and arcade racing feel. Running it on Android through PPSSPP (a PSP emulator) is a popular way for fans to relive the experience on mobile devices — but note: Underground 2 was originally a PS2/GC/Xbox/PC title, not a PSP game, so any PSP-based builds are homebrew or ports and availability varies.
: You must provide your own legally obtained copy of the game in .iso or .cso format.