Board Thread:Questions and Answers/@comment-30093591-20160928192733/@comment-5956954-20160930153732

Uhh, logically, if it is impossible to get hit by an attack, then it doesn't count towards being impossible in no-hit runs, so Sans is actually the easiest one to no-hit here. 3rd most difficult in the game, really, but still easy compared to the other two on this list.

Asriel has the hardest attack to dodge which is the one where he starts to have a mental breakdown (not the hyper beam. Before it.) It's possible to dodge, though. It just requires an immense amount of luck with the RNG.

With Photoshop Flowey, well, you are very very late to the party if you haven't seen this:

Anyways, yeah. Those are my thoughts.