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.83.com.com2us.hw2.normal.freefull.google.global.android.common.obb'

4. Copy obb file to /SDCARD/Android/obb/com.com2us.hw2.normal.freefull.google.global.android.common/main.83.com.com2us.hw2.normal.freefull.google.global.android.common.obb