Quoted from Atomicboy:Stern could make a machine called "Unfinished Code" and pinsiders would eat up the LE's, start a billion new love threads on it, and still be surprised when they don't complete the code.
Maybe the next Stern should be "Unfinished Code". Every time you complete a mode, additional code is unlocked. The beauty of it is that it could be upgraded pretty much forever, and yet never be done. It would be the ultimate Stern.