Thank you for playing! My wife and I love adult swim and that is apart of our motivation.
I can in the future add volume controls to the GDX Engine Screen play API allowing their to be a slider. The game play menu allows you to change the volume already in a highly custom way! Ambient, the hands, SFX and music controls. Though this does not effect the splash screen.
Great idea about the new round! My wife was puzzled and was telling me the same thing how do i start a round?