First off, before you can learn how to hack Android games without root access, you need to download Game Killer. So go ahead and download the software from below, then scroll down to the tutorial and FAQ.tep by step instructions: 1  Get Game Killer from above and install it on your Android device. 2  It may take a minute or two to install since it supports so many games and there’s a fair bit of data to download, depending on your connection; using Wifi may be faster.