* Most of the character dynamics, the basic plot and the sports theme of the first episode are lifted from tennis anime ''AimForTheAce''. Coach in particular is an {{Expy}} of Coach Munakata.
** The title itself is a combination of ''AimForTheAce'' and ''Film/TopGun'', two major influences on the plot.
* Noriko has, amongst other things, a ''SpaceBattleshipYamato'' poster in her room.
* Gunbuster's design is a combination of a [[Anime/MobileSuitGundam Zaku]], [[SpaceRunawayIdeon Ideon]] and [[Manga/GetterRobo Getter Dragon]].
* The Super Inazuma Kick is a [[KamenRider Rider Kick]].
* Gunbuster's homing missiles have the same design and firing point (fingers) as [[GiantRobo Giant Robo's]] missiles.
* Its forehead beam, ship combination and tomahawks (which didn't make the cut, but can still be seen in its TransformationSequence) belong to [[Manga/GetterRobo Getter Dragon]].
** Likewise, Gunbuster's first launch is adapted from the pivotal battle of ''[[Manga/GetterRobo Getter Robo G]]'', where the machine rises out the ocean, [[BadassArmFold arms folded]], and decimates the enemy's forces.
** The final scene also homages Musashi ripping the reactor from his machine's chest at the end of ''Manga/GetterRobo''.
* Gunbuster is also shown launching missiles/lasers from all over its body in an identical fashion to [[SpaceRunawayIdeon Ideon]].
* Although never used in the show, an official card game showed Gunbuster using the Choudenji Yo-Yo and Choudenji Spin from CombattlerV.
* Hideaki Anno gave Gunbuster a single eye because he thought it was unique. However, he later decided it was a mistake because it didn't keep the robot recognizable when in shadows. This is why EVA-01 was drawn with two glowing, white eyes on a gloomy purple body.
* TheDanza: [[BadassAdorable Noriko]] [[TheHero Takaya]], voiced by Creator/NorikoHidaka.
* HeyItsThatVoice: It's [[Creator/NorikoHidaka Akane Tendo]] and "Big Sister" [[ReiSakuma Shampoo]].
* KeepCirculatingTheTapes: May no longer be available in Japan for the time being due to a [[RoleEndingMisdemeanor drug scandal]] involving the OP singer, Noriko Sakai.