Board Thread:General Discussion/@comment-39128364-20191124180454/@comment-27108700-20191201010450

i think asriel is the easiest automatically for the sake of not even being a real fight, you literally cant lose. the other two is kind of a tossup though imo

sans seems impossibly difficult at first but by bullet hell standards sans isn't all that bad when compared to, say, anything out of touhou, i think his fight is all about memorization and finding the best ways to deal with things, which from my experience tends to be how other bullet hell bosses are fought as well. once you have the fight memorized i find it's easy to beat afterwards, but if you don't know the fight or what to do then it can be really hard

photoshop flowey is just trying to navigate chaos, and hoping that the healing you get outpaces the damage you take. i think the main reason i would say this is the hardest is because unlike the sans fight, you literally cannot memorize this; some of the situations thrown at you are outright impossible to dodge and to take no damage at all requires an insane amount of luck. it's probably my least favorite fight in the game based on its design alone, like the asriel fight it's more cinematic than anything