Based on available information, 'The Pig, the Snake and the Pigeon' does not feature any identifiable LGBTQ+ characters or themes. The film's narrative centers on crime and violence, lacking any explicit LGBTQ+ representation or exploration within its storyline.

The movie *The Pig, the Snake and the Pigeon* does not feature any identifiable transsexual characters or explore transsexual themes. The narrative centers on a hitman's quest within the criminal underworld, cult manipulation, and personal transformation, without addressing gender identity or trans issues.

The film's narrative focuses on male action and conflict. While female characters like Hsiao-mei are present and pivotal to the plot, they are not depicted as engaging in or winning direct physical combat against male opponents.

The film is not identified as an adaptation, biopic, or reboot with pre-existing characters. Without prior established canonical genders for its characters, no gender swap can be identified according to the provided definition.

No information is available regarding source material or established character races for 'The Pig, the Snake and the Pigeon.' Thus, no instance of a race swap can be identified based on the provided data.