This animated film does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses on monster characters celebrating Halloween, with no elements related to queer identity or experiences present in the story.

The film 'Mighty Mighty Monsters in New Fears Eve' does not feature any identifiable transsexual characters or themes. The narrative focuses on animated monster characters in a children's Halloween/New Year's Eve special, with no content related to transgender identity.

The movie does not contain any action or adventure elements.

The film features child versions of classic monsters (e.g., Frankenstein's monster, Dracula, Werewolf, Mummy). These characters maintain the gender typically associated with their monster archetype, and no established character from prior canon or source material is portrayed with a different gender.

This animated film features original characters without a widely established prior canon or historical basis for their race. Therefore, no character can be identified as having been portrayed as a different race than originally established.