I opened it in RPG Maker MV, went to the 'CommonEvents' tab, scrolled down to the event titled something along the lines of 'bestiality/extreme content' (not exact, but you'll know it when you see it). The part that asks for the special code inside the event lets you know what the answer to the code question is, while the very last line of the event was to reset the extra content switch to 'off', thereby disabling the content even if you got the code right. Delete that single line of code, save, and take note of what the code you'll need is, and then you'll be golden until they change how they want to hide their content.