It'd be cool if there were mini games. What made me think of it was the last room in FSC depth 26 where its just the party button, then the row of spikes then waves after waves of Skellies. The mini game can start off on like tier 1 one drops. And over time the waves become harder enemies with better drops, and then when it reaches the tier 3 and the hardest skellies, to make it harder it could just begin to drop less hearts over time. It would be nice to have another way like this to make crown. Just have it pay a set fee of energy at the start. See how long people last :D