Could you add an endless mode? Maybe it'll re-randomize each act again, but with mutations on the enemies to make them harder. Hell, even without the mutations, NG+ style endless could still be fun
Also, could you pls update the web build with the other characters? I saw them on the steam version, but oftentimes I play on a Chromebook as well. (Not even for procrastination [usually], it's just the only laptop I have.)