Mettaton EX but he gets the ratings himself (No ratings from acts, fight, or items challenge)

This is something I'm surprised I haven't seen yet. There are videos of doing the fight without ACTs but these use items and equipment to get a fast end to the fight. I don't do fast, so I also prohibited myself from using items and attacking as these also increase ratings. This leads to the battle taking way more turns than normal, and since I couldn't use items: it's a gauntlet of attacks. I saw the same attack so much that I realized that during Mettaton's heart to heart attacks, Mettaton's chest turns into an angry face until the heart goes back in its resting place. This was also a practice of doing something similar in Deltarune chapter 2. Hopefully results of that appear next week.