A. 1. Close the game completely by double-tapping the home button and swiping up on the Sonic the Hedgehog app. 2. Restart your iPhone to clear any temporary glitches. 3. Ensure your iPhone is updated to the latest iOS version by going to Settings > General > Software Update. 4. Check for any updates for the Sonic the Hedgehog app in the App Store. 5. If the problem persists, try uninstalling and reinstalling the app to reset its data.
B. 1. Reduce the graphics settings in the game if the option is available. 2. Close any other apps running in the background to free up system resources. 3. Play the game in a location with a stable internet connection to avoid lag that may cause freezing.