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En guarde!


Spear of Justice is the 46th track in the Undertale Soundtrack. It plays while fighting Undyne in the True Pacifist and Neutral routes.

Its melody is based on Undyne and the Ruins melody, more specifically, the version of it in Waterfall.

It is a longer, slightly modified version of NGAHHH!! with more sections added.


  • "Spear of Justice" is a reference to Gerson's former title, "The Hammer of Justice."
  • A sped-up version (at 1.2x speed) of this song plays in the faux battle with Undyne.
  • There is an alternate version of Undyne's Battle theme, but it was scrapped since it didn't sound like "being heroically punched in the face."[1]


  1. I think this is the most finished-sounding of all the unused tracks. I made this before I really knew Undyne’s personality, so while the arrangement is good, I felt like it didn’t sound enough like being heroically punched in the face. - undertale on Tumblr, September 13, 2015.