If you have downloaded a .zip file for a boxing game to use with PPSSPP, follow these steps to set it up on your Android device:
A: Only via Xbox/PS3 emulation (e.g., AetherSX2 for PS2 — but Round 4 is PS3/X360, not yet playable on Android). Or via cloud gaming (Xbox Game Pass). Fight Night Round 4 PPSSPP Zip File For Android...