If prompted, allow your browser to "Install apps from unknown sources" in your Android settings.
Go to your phone's Settings > Apps > Special app access > Install unknown apps and grant permission to your browser or file manager. Install: APK: Tap the downloaded file to install directly. If prompted, allow your browser to "Install apps
Once finished, the game icon will appear in your app drawer. Launch it, configure your control settings, and enter the King of Iron Fist Tournament! Alternative Method: Emulating the Original PS2 Game configure your control settings