Script to repack Flappy Bird so that it may install in Android 14 + arm64, newer Samsung Galaxy devices.

1. Get apktool and export APKTOOL_DIR to where you saved it (as apktool.jar)
2. Get the Android Build Tools, export ANDROID_BUILD_TOOLS to its location
3. Get the Android NDK, export ANDROID_NDK to its location
4. Get the original Flappy Bird APK, save it as com.dotgears.flappybird-1.3-4-minAPI8.apk.
5. Run ./repack_flappybird.sh, repacked file is ./flappy.apk.