Name of cheat:
-UNLIMITED MONEY AND XP
Pixel Gun 3D (Pocket Edition) MOD APK 11.2.0 (Unlimited Money/XP)
1. Install APK
Download the OBB file/SD file. They should be .zip or .rar files.
Extract the file to your sdcard.
Move the extracted folder to the location: /sdcard/Android/obb