Due to a complete lack of information regarding the film's plot, characters, or themes, it is not possible to determine if LGBTQ+ characters or themes are present, or to evaluate their portrayal. Therefore, an assessment of the net impact cannot be made.

There is insufficient information available to assess the film's portrayal of transsexual characters or themes. Without plot details or character descriptions, it is not possible to determine if such depictions exist or their overall impact, thus preventing a definitive rating.

The movie does not contain any action or adventure elements.

Without information on source material, previous adaptations, or historical figures for 'Hidden Heroes, 1999,' it's impossible to determine if any character's gender deviates from a pre-established canon. No baseline exists to identify a gender swap.

There is no information provided to indicate if "Hidden Heroes, 1999" is an adaptation of existing source material, a biopic, or a reboot. Without details on character origins or established canonical/historical races, it is not possible to determine if a race swap occurred.