The achievements "All I need is one arm" and "All I need is one finger!" require beating all guardians without using subweapons, in a single save file. As far as I'm aware, there's no way in-game to check if a save file has violated this requirement.

I'm pretty sure I know all of the rules (shields are fine, no other subweapons, no weapon fairies, only ankh bosses and the final boss matter), but it'd be nice to be able to defeat a boss and be certain I didn't accidentally press the wrong button and not realize it or something.

Is there any way to check this, either inside the game or out? I couldn't find any information on cheat engine or save editing that wasn't for just ordinary cheating.

I'm specifically asking for La Mulana 2, but if there's a solution that works for both games that would still be appreciated.