Trade your way to the top by buying and selling (i.e. flipping) coins on the FO(re)Xchange.

There are two kinds of coins: Unknown and Graded, both being traded on the exchange by many different groups:

• Prospectors: Who spend time looking for new unknown coins
• Graders: Who take a chance on unknown coins and occasionally produce Graded coins
• Collectors: Who desire and trade Graded coins. 

Made as part of #minijam176, theme "foxes", limitation: "coin flipping as a mechanic".