Rattlesnake emerges as the primary antagonist after trapping Shimajiro and his companions. She poses an immediate, direct threat by declaring her intent to devour the group, solidifying her antagonistic role. Following this entrapment, she undergoes a significant shift, choosing to release Shimajiro, Flappie, Mimi-Lynne, Nikki, and Coco. This pivotal decision marks a turning point in her character. Subsequently, she assists the group by providing transportation, facilitating their journey and signaling her transition from adversary to ally within the narrative. Her physical portrayal remains consistent, identified as a puppet character, a design choice contributing to her distinct visual presence in the film.