APK MOD INFO
Name of Game: Astro Boy Dash
VERSION: 1.4.5

Name of the cheat, mod, or hack (credits: wendgames):
-UNLIMITED COINS & GEMS

Astro Boy Dash MOD APK 1.4.5 (Unlimited Coins & Gems)

Download the CACHE file/OBB file. They should be .zip or .rar files.
Extract the file to your sdcard.
Move the extracted folder to the location: /sdcard/Android/obb