Phighting, main theme
Splat, don't make me choose one.
Splat 1: tied between Calamari Inkantation, Metalopod, Kracken Up, Ink or Sink, Ink Me Up, Eight Legged Advance, Tentacular Circus, Inskstrike Shuffle, I am Octavio, and Octoling Rendezvous
Splat 2: Inkoming!, Don't Slip, Endolphin Surge, Broken Coral, Happy Little Workers, Fishing Frenzy, Ever Further, every Splatfest song, every Single player song and dlc song.
Splat 3: yes.