Quoted from transprtr4u:Save the quarter, set your game to "free play"
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I have my Genesis set to play with quarters. Make it more nostalgic I think. Got $20 worth and when I run out I put $20 bill in there. Just for kicks to see how long it will take to get what I paid for the machine. Probably will take a while but it's all in fun anyways. Funding my next pin by playing the one I have one quarter at a time lol