This time one of the buttons has an upside, I won’t tell which. Good luck!

Games in general become more interesting with hidden information. The strategy here is to just bet as little as possible, and only go for the Kelly criterion once you know which button wins. I thought this would be a bit tedious to do so I added a feature to keep track of win/lose ratios, at a relatively steep cost. The steep price is intentional, it’s basically a win button for those who are “Kelly aware” (and too lazy to track by hand). However, a gambler may see the steep cost and decide the information is not “worth” the $15 in bets he can place. Uncle’s advice is worth its weight in gold, of course.