Gunbuster (1988) does not feature any identifiable transsexual characters or themes. The narrative primarily focuses on mecha combat, character development, and sci-fi concepts, without engaging with gender identity in this specific context. Therefore, there is no portrayal to evaluate.

The show features female characters who pilot giant robots in combat against alien monsters. Their victories are achieved through advanced technological superiority and ranged weaponry, not through direct physical combat or martial arts against male human opponents.

Gunbuster is an original anime series from 1988, not an adaptation or reboot of pre-existing material. All characters were created for this specific production, meaning there is no prior canon for their gender to be swapped from.

Gunbuster is an original anime OVA series from 1988. All characters were created for this specific production, meaning there is no prior source material or historical record to establish a different canonical race for any character. Therefore, no race swaps occur.