Version 1.4 is already in the wait queue, but for the next one,
I'll sneak a way to set your own CPU and timeslice.
I'm not keen to support it properly through the interface unless I hear more of the same.
MegaBall App can never play other games, but if you can drop a file into the App's
documents directory with iFunBox or similar program, a CPU config file could go in there.
The attached file goes in the App's documents directory, and is a demo custom
game board (a rather boring one) that uses all possible brick types.
If you open it in a hex editor, you could see how it works and make your own.
It should override the built in level one game board.