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
[Deltarune Chapter 2] - The Queen
[Deltarune Chapter 1] - The King
This week's Fan Art Friday celebrates Undertale! Accept the quest in your quest log to get started.
[Undertale: Here We Are] - Phase 1: Reaper
Happy Joltidays! A new quest has entered your quest log. Accept the quest and follow @souptaels 
to open today's slot on the calendar.
[Deltarune Chapter 3] - Knight Roaring
[Lovecraftian Killer!Sans] - 'Under the Tale of Sleep' Full Cast P1
Undertale, but nothing's wrong.
[Undertale: Here We Are] - Phase 3: Mother
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