Monster Island does not feature identifiable LGBTQ+ characters or themes. The film's narrative centers on a wartime survival story and the relationship between its two male leads, without exploring LGBTQ+ representation or related social issues. Consequently, the net impact on LGBTQ+ portrayal is N/A.

Monster Island, 2025, does not feature any transsexual characters or themes. The film's plot centers on survival horror involving a mythological creature and human conflict, with no narrative elements or character arcs related to transsexual identity or experience. The portrayal is N/A due to a complete absence of such depictions.

Monster Island centers on two male protagonists, a Japanese soldier and a British POW. The film does not feature any significant female characters in combat roles, nor are there any scenes depicting a female character defeating male opponents in physical combat.

The film is described as an original story focusing on two male protagonists, with no indication of pre-existing characters whose gender was altered. The provided information explicitly states no gender-swapped roles are featured.

The film features original characters, a Japanese soldier and a British prisoner of war, set in a historical context. There is no indication that these or any other characters were previously established in source material or history as a different race, thus precluding a race swap.