Almost half a million dollars was "given" away over the July 21 weekend when a malfunction led to it thinking every bill inserted was 10 times that amount. If you inserted $100, it would credit you with $1,000.

Players took notice, and soon people were inserting money and withdrawing to a ticket without playing a single pull.

The machine had been updated with new software and was mistakenly set to be used in the Phillipines, where credits are multiplied by 10. Normal casino procedure is to test the machine to make sure currency inserted into the machine is the same value credited.