Kirby 64: The Crystal Shards
This theme debuted in this game, for the fight against 0². The track can be found as Music 31 in the Sound Check mode.
Super Smash Bros. series
"0² Battle" was given a remix in Super Smash Bros. Brawl, and is one of the many songs that can be played in the Halberd stage. This version has a faster tempo and energetic rhythm, scored with electric guitars and synths. The remix was arranged by Koji Hayama.
Kirby Star Allies
This theme was combined with Miracle Matter's theme and Ripple Star's map theme for a medley in Kirby Star Allies. It is used for the fight against Morpho Knight in Guest Star ???? Star Allies Go! and the Soul Melter or Soul Melter EX difficulties of The Ultimate Choice if P1 is Adeleine & Ribbon. This version is orchestral, while featuring a repetitive, synthetic bass and drumline similar to Morpho Knight's theme.
As of Version 4.0.0, this remix can be heard as Track 178 of the Jukebox, and is named おとめたちのやみとのたたかい (The Girls’ Battle With the Darkness) in Kirby Star Allies: The Original Soundtrack. It was arranged by Hirokazu Ando.
In the The Sound of Kirby Café, "0² Battle" was given a slow-paced jazzy remix (Track 10: Sixty-four / VS. 0²). It was arranged by the original composer, Jun Ishikawa.
In the Kirby 25th Anniversary Orchestra Concert, this theme was played live as part of the Kirby's Dream Land 3 / Kirby 64: The Crystal Shards Medley. It is the final track of the medley, scored as a crescendo; it begins with quiet woodwinds and builds up with brass and strings while retaining a steady snare drum rhythm. The medley was arranged by Shogo Sakai.
Names in other languages
0² (Zero tsū)
VS. Zero tsū
|0² (Zero Two)|
VS. Zero Two
Zero Two Battle