So quick thing here: First of all I had to download an earlier version of the installer to get it to work with Funger 2(I downloaded 1.1.3 I believe) and while yes it does work, something seems to be wrong with the no mana loss option. I still use Mind whenever I use my skills in battle and I can restore it with items unless I turn that cheat off.
EDIT:Just installed version 1.1.9 from the github repo, same thing is happening. No health loss works fine, it's just the no mana loss one that is broken