Many music in Diebuster is recomposed based on the music used in Gunbuster.
•
Also called Gunbuster 2, it is the direct sequel to Gunbuster, but is animated in a 16:9 widescreen aspect ratio, rather than the 4:3 aspect ratio used in the majority of Gunbuster.
•
Unlike the mechs seen in Gunbuster, the Buster Machines in Diebuster appear to be sentient biomechanical mecha built by some unspecified Buster Machine corporation, which are actually later generations of the first two Buster Machines from the first OVA.
•
It is a gigantic red-colored rendition of Nono, though the outfit bears a close resemblance to the legacy Top Squadron uniforms from Gunbuster.
Fans have speculated that this was due possibly to its similarity to Vangelis' score, given that the piece was a homage.
•
The proposal for Gunbuster languished until Anno, who was then working at Studio Gravitron on Grave of the Fireflies, saw Yamaga's script and 'was moved to tears' by it.
•
It was the directorial debut of Hideaki Anno, best known as the director of Neon Genesis Evangelion.
•
On the original video release of episode 1, Noriko's training montage was accompanied by music composer Kōhei Tanaka's rendition of a piece inspired by Vangelis' theme from Chariots of Fire.