Ice Age: The Meltdown does not include any identifiable LGBTQ+ characters or themes. The narrative centers on heterosexual relationships, family dynamics, and the challenges of survival in a prehistoric world, with no elements that could be interpreted as LGBTQ+ representation.

The film "Ice Age: The Meltdown" does not feature any identifiable transsexual characters or themes. Its narrative focuses on prehistoric animals and their survival, with no elements related to gender identity or transition. Therefore, there is no portrayal to evaluate within the scope of the rubric.

The film features Ellie, a female mammoth, who possesses natural strength inherent to her species. However, she does not engage in or win direct physical combat against any male opponents through skill, strength, or martial arts. The primary antagonists are defeated by environmental factors and the male protagonists.

Ice Age: The Meltdown is a direct sequel featuring the same established characters from the first film, all maintaining their original genders. New characters introduced in this installment do not constitute gender swaps.

The film features anthropomorphic animal characters. The concept of human race does not apply to these characters, and no human characters from prior canon or source material had their race changed.