The gender identity of the party member Vivian is inconsistent between different language translations of the original game. In the Japanese version, Vivian identifies and presents as female, but is described by other characters in the game as actually being an effeminate-looking male, aligning with common media depictions of transgender or gender non-conforming characters at the time, but not explicitly referring to Vivian as such. A rough translation of the Japanese text for Vivian as a party member reads:


The French version directly carries this over and additionally describes Vivian as a boy pretending to be a girl, while the Spanish version describes Vivian as a boy who looks like a girl. However, according to former Nintendo of Europe translator Pol Roca, Vivian's Spanish name "Bibiana" was intended to be a reference to the Spanish transgender actress Bibiana Fernández, who starred in the 1977 film Cambio de Sexo (or Sex Change).

The English and German versions remove any references to being transgender or gender non-conforming, implicitly portraying Vivian as a cisgender woman with "a bit of an inferiority complex". Instead of being bullied over her biological sex, her sisters instead belittle her for her appearance.

The Italian version of the game on the other hand explicitly depicts Vivian as an openly proud transgender woman, with the localization reconfiguring her relationships with gender identity and her sisters by having Marilyn and Bedlam's bullying being rooted in jealousy, traits which are absent in the Japanese script:


The English release of the Nintendo Switch remake follows the Italian version of the original game in unambiguously describing Vivian as a transgender woman, most prominently featuring a line where Vivian states that "it took me a while to realize that I was [Marilyn and Beldam's] sister... not their brother." It's currently unknown if Vivian's portrayal in other translations of the remake has changed from the original release.