Most paid certs aren’t worth much anyway. Payment and delivery info for DV certs isn’t validated by anyone, it’s literally the same concept as Let’s Encrypt. OV and EV are the only ones that theoretically have any value, but nobody is using those ever since they got rid of the URL bar labeling; even Amazon is on DV nowadays.
NieR Automata, for basically the same reasons. Hard mode is filled with instakills everywhere and is really just a damage multiplier, so you have to be the right kind of person for that. If you’re not, Normal is probably already fairly easy because of all the auto-heals, but the pacing can be a bit slow for something where most enemies aren’t dangerous. Might as well play Easy and play for the story.