Go to your Android settings and allow installation from unknown sources to permit the APK install.
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While M.U.G.E.N is natively a PC engine, Android versions are usually distributed as pre-configured APKs or requires an emulator for higher-end versions like "Mugen Academy". anime mugen v3 android 500 characters download updated
You can download Anime Mugen V3 for Android from the link below. Please note that the file size is approximately 500MB, so make sure you have enough storage space on your device. Go to your Android settings and allow installation