Board Thread:General Discussion v2.0/@comment-26347196-20151109173852/@comment-26347196-20160204021114

Hardest to actually beat: Sans (Took me 2+ hours to beat, and then is rather easy afterwards. Took me another 2+ hours to beat him with no heal)

Hardest in skill: Undyne the Undying (Somehow is easy as hell for me. Three tries in first run. But eleven times with no heal)

Hardest in luck: Asriel Dreemurr (I died once after Asriel transformed the second time)

Hardest to no hit: Omega Flowey (I did not die. At all.)