Our customer is a popular video gaming company that makes a variety of games for computers, video game consoles, and handheld/mobile devices. We tested one of their mobile gaming applications end-to-end to ensure that the program met its predefined requirements. We employed several methods to test for functionality, performance, compatibility and localization. The functionality testing checks for important features such as motion speed, touch sensitivity, and proper instruction execution. We tested across both IOS and Android devices. As changes were made to resolve any issues in the program, we performed automated regression tests to check for any unforeseen changes.