The animated short film 'Hot Stuff' by Zlatko Grgic does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses on a man's humorous attempts to deal with a fly, with no elements related to queer identity or experiences.

The animated short film 'Hot Stuff' by Zlatko Grgic does not contain any identifiable transsexual characters or themes. Its narrative centers on a man's humorous and often absurd efforts to gain a woman's attention, without engaging with transgender identities or issues.

The movie does not contain any action or adventure elements.

The film "Hot Stuff" (1971) is an original animated short from the Professor Balthazar series. Its characters are new creations for the animation, not adaptations of pre-existing figures with established genders from other media or history. Therefore, no gender swaps occur.

The film is an animated short from 1971 featuring original, stylized characters. There is no prior source material with established human characters of a specific race, nor does it depict historical figures. Thus, the concept of a 'race swap' does not apply.