During her battle with the Indominus rex, she knew not to attack Blue after Blue helped her defeat the Indominus because she was exhausted from the fight as well as acknowledging the smaller theropod's help. Additionally, her brawn and ferocity is partnered with a good dose of intelligence, as she checked her fence to see if it was working when the saboteur Dennis Nedry shut down all power to the park. In many circumstances, her own hunger and hostility was unintentionally helpful to others, such as her feeding on the Velociraptors chasing Alan Grant, Ellie Sattler, Lex Murphy, and Tim Murphy and thus indirectly saving them. Grant, Ellie Sattler, Lex and Tim Murphy, and Eli Mills completely by surprise, as neither of them saw or heard her coming. She also appears to be fairly efficient at stealth, as she caught Dr. She was shown roaring and launching herself at the Indominus rex the first moment she saw it. Even twenty-plus years older, she was still relentless and very vigorous.

This Tyrannosaurus was the largest carnivore living on Isla Nublar as such, she is a fearless, bold, and domineering beast that walks the line between heroine and villainess, largely motivated by two goals: Keep intruders off her territory and eat any prey that she finds there. This makes her role something of an anti-heroine in the films. She is known for participating in several incidents on Isla Nublar and for saving the major human participants involved in these incidents from other dangerous creatures, although inadvertently. She is a female Tyrannosaurus rex that appears in Jurassic Park, Jurassic World, Jurassic World: Fallen Kingdom, Jurassic World: Camp Cretaceous, and that will appear in Jurassic World: Dominion. The animatronic was nicknamed Roberta in Phil Tippett's storyboards for the first film however, the majority of fans address her as Rexy, the nickname given to her in the original novel, Jurassic Park: The Game, The Evolution of Claire and Jurassic World: Camp Cretaceous. This Tyrannosaurus rex is the secondary antagonist turned anti-hero of the original Jurassic Park film, a minor character and anti-hero of Jurassic World and Jurassic World: Fallen Kingdom, the tertiary antagonist of the second season of the Netflix TV series Jurassic World: Camp Cretaceous, and a minor antagonist in the show's third season.

13th film wiki