The handheld compatibility program helps you understand when a game will work on your ROG Xbox Ally X and ROG Xbox Ally.3 Easily identify which games are handheld optimized. Don’t worry about tweaking settings. Just launch your game and play anywhere. Games that are mostly compatible mean minor adjustments might be required on your supported handheld. When a game has a “Should play great” Windows Performance Fit badge, it means that game will play, look, and feel great on your device.