There was a strategy to it! Instead of dropping coin down every last blade, little kid me aligned the machine a particular way so the coin would drop all the way down to the second to last blade. Then I would nudge the coin to the edge, then twist and suddenly stop to give it enough force to not just fall straight down, but also not enough to fling it past the final blade. I'd say I won around half the time, and intentionally only did it once every so often to not arise suspicion you could game it well. I was sad when my 25 cent burritos were taken away for good after this machine left, ah well.