"Halo Theme MJOLNIR Mix" is a musical track that was originally the first track on the Halo 2 Original Soundtrack Volume 1 and is a remix of the original "Halo Theme". For the Dead or Alive series, the theme has only appeared in Dead or Alive 4 when either the player fights in the Nassau Station or fights against SPARTAN-458 in Time Attack Mode. This is one of the character themes that is not included in the Dead or Alive 4 Original Sound Trax, possibly due to licensing issues.