Unless I am strongly misunderstanding the rules, on OSX you can only run on a floor if you have used ALL 4 cards on the previous floor. I have tried combos of using 3 cards and also combos of defeating all enemies, but regardless of what I do if I leave a floor without using all 4 cards I don't have the option to leave without using all 4 cards the next room. Can someone explain to me what I'm misunderstanding if so? Thanks!
e.g. I take 3 cards room 1 and leave a shield, room 2 I'm not allowed to run until all enemies are dead. This seems not what I thought the rules were?