Install the AetherSX2 APK or DamonPS2 .
God of War 2 on Android: The Ultimate PPSSPP & PS2 Emulation Guide god of war 2 highly compressed for android ppsspp exclusive
Widely considered the best free option for Android. It requires a device with at least a Snapdragon 845 or equivalent for smooth gameplay. Install the AetherSX2 APK or DamonPS2