1. Download APK first, then copy to your Android device's SD card

2. Install APK, DO NOT open app

3. Download obb files, then rename to 'main.47947032.net.fishlabs.gof2hdallandroid2012.obb'

4. Copy obb file to /SDCARD/Android/obb/net.fishlabs.gof2hdallandroid2012/main.47947032.net.fishlabs.gof2hdallandroid2012.obb