Board Thread:Questions and Answers/@comment-27327020-20160404174206/@comment-13682699-20161030232652

Everyone's different. I made it past Photoshop Flowey in one go (with low hp) and when I tried Sans, I made it past his first attack.

The main difference between Sans and Photoshop Flowey is that Sans is legit trying his best to kill you. Flowey is just toying with you. He only shows his full power near the end of the fight when he spams his load after instantly killing you and proceeds to force you to die almost endlessly for his own amusement while you are completely helpless. The whole fight beforehand was him just acting along trying to make you think you could beat him when, in reality, the only way he could be beaten was when the other six souls rebelled and made him lose his power.

So ultimately, yes Photoshop Flowey is infinitely stronger than Sans or any other monster/human besides Asriel's God of Hyperdeath form (or Annoying Dog). He simply kept you alive for his own amusement.