so it is known that who ever has the most determination is able to save load and based on the fact that flowey could save untill you enter the underground it must only cosider underground. so who before flowy had the power to save load and reset. it
so it is known that who ever has the most determination is able to save load and based on the fact that flowey could save untill you enter the underground it must only cosider underground. so who before flowy had the power to save load and reset. it
Possibly undyne, but she would not know she had the ability
The fallen humans were hinted at possessing the ability when you speak with Toriel after loading. Before that, then Asgore himself may have held the power but never realized it since he never died before then. The most likely candidate after both Asgore and the fallen humans but before Flowey is Undyne, but her situation would be the same as Asgore's.
If the other Fallen Children had SAVE and LOAD, Asgore would have been killed a long time ago.