If you didn't get hit and keep sparing undyne in undyne's 3rd phase, you could reach the hidden phase and ending, which shows Undyne had perfectly mixed herself with all Amalgamates and become the goddess of the earth (Daichi no Megami), now her vessel is fullfilled with the earth itself's will and gonna act what The Earth really want to do.
1 year ago
[Undertale: Here We Are] - Phase 4 (Hidden Phase): The True Earth
Next up
[Deltarune Chapter 2] - Giga Queen
[Lovecraftian Horrortale] - 'Horror In The Eyes' Full Cast P2
[Lovecraftian Horrortale] - 'Horror In The Eyes' Full Cast P3
Undertale, but nothing's wrong.
[Deltarune Chapter 3] - Knight Roaring
Howdy
Finally finished this costume before Halloween
Oh yeah and can't forget that the dog's soul is mine
[Lovecraftian Horrortale] - 'Horror In The Eyes' Full Cast P1
[Lovecraftian Killer!Sans] - 'Under the Tale of Sleep' Full Cast P1
Mew 
[Undertale: Here We Are] - Pre-phase 1: Dash!
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