I've personally seen casino multi game slots that have had either options built in to them via admin panels or grievous enough software issues that mis-wired mu

I've personally seen casino multi game slots that have had either options built in to them via admin panels or grievous enough software issues that mis-wired multi use buttons could allow a player to either lose horribly or continually win/compound upon wins. The coin or credit in/out stat counters would also be affected and be pretty much worthless. These issues just throw ANY concept of magic "odds" chips right out the window. They're not regulated that closely at all.