Well, it does what it says. Almost. Upon launching one is greeted with a crudely drawn interface and a choice of two buttons. Pressing the play button closes and redraws the window, and one of two things happen: you either win $10 or you spend $1. And that's it. Press 'Cash out' to quit.
There's no animation to speak of, no feedback of any kind, in fact - no reason to play. Simply hold down return and watch as the window flashes away and the value in the bottom corner goes up and down.