I’ve done it multiple times and it is pretty fun but I think the sans fight is the most fun fight in the game. Undyne the Undying is 2nd and Asriel is tied in 3rd with photoshop flowey. Try genocide u won’t regret it
Extra story: so I did this about 30 minutes ago on a school bus bc my class was on their way back from an overnight field trip. When I beat him, I started freaking out and everyone around me was so confused and looked it me weird. The only one who didn’t look at me weird was my best friend who knew what I did as soon as I started freaking out lol