Minimum Spec : iPhone 6s or better
iPhone 6 (or under) will constantly crash because of low memory
Hide Toolbar feature in iOS 13.xx creates various problems.
Bottom area problem
Set Lower Margin. Also set Upper,Side Margins if it’s more comfortable
Bubble Shooting Not Stopping Problem
Wait 3 seconds. It fixes itself. This is also the same symptom as touch swipe not working suddenly.
Not a perfect solution, but this will relieve the problem. As long as you don’t swipe the bottom while playing, no problem.
Don’t use Auto-Rotation
Sometimes it’s better in landscape mode to watch Animated Comics. But, don’t turn on auto-rotation, use built in rotation feature
If you use auto-rotation, all buttons will be broken in the landscape mode. And, this looks much better than the auto-rotation.