Pro Pinball: Big Race USA

Pro Pinball: Big Race USA cheat codes: 
Million Dollar Madness:
Once you reach $1,000,000 (** on any difficulty),
the game stops counting your money.
You want to go to Jay's and buy the Big Mystery to
start Million Dollar Madness.  (No qualifications
other than the million dollars are needed.)
Its existence is no secret (the cookies kinda give it
away) but I've ROT-13ed the description of it in case
you want to find out for yourself.  You get 1 point for
starting Million Dollar Madness, for some reason.