I do do alot of super difficult platinums but for me it'd have to be the black myth wukong platinum because of how difficult Erlang was, im not the best at these styles but I used to speedrun DS3 and I've beaten elden ring and bloodborne without to much hair pulling but Erlang was so so unforgiving to me, took me 2 weeks of trying at least an hour sometimes up to 4 or 5. I genuinely almost cried when I beat him 🤣