Board Thread:M.U.G.E.N Help/@comment-27711188-20160131175709/@comment-4895975-20160131204535

There are literally thousands of characters, and the time it would take to generate "performance" information on all of them would not only wildly vary depending on the character's playstyle, but also who made it, what kind of AI it has, and perhaps most importantly who it fights against. It's just too much information to calculate and estimate at once. You could do what Saltybet did and keep a record of your personal roster's win-loss ratios, but beyond that I don't believe this is possible.