So I heard Sans mentions something in the ending if you stick (haha) with the stick and bandage the entire game. I also heard he says something if you don't eat anything. So I did both at once. I just got one thing to say, screw Asgore when you are doing all of this. I haven't had a bad time in genocide because I refuse to do that route but I did watch a video on that fight. Comparing the two I would say this is harder than that.
Having a bad time without using items might be close, but with Asgore you only can take 4 hits before dying. Also the RNG on a couple of his attacks (specifically the one where you recieve an alert that he will blast fire down the left or right sides) make it insanely hard to predict and dodge the attack. Also you have to survive so long because your attacks do so little damage and the attacks ramp up in intensity by a large degree as the fight goes on. I think I died about 30 times before I finally won. Everything else wasn't that bad outside Asgore though. I think the second highest death count was against Muffet with 3 deaths and they were dumb deaths.
After you beat Flowery, Sans says something like "...wow, you really like a challenge don't you." and he says to try and not to brag about it haha. Sorry, Sans. I couldn't help it.
EDIT: Forgot to mention that this was played in a pacifist run so I only had 20hp at the time.
