Screenwriter Lobdell of HDD explains that he wanted to change the concept of the final girl by subverting the basic idea to create a cruel character whose acts are justifiable and a strong theme of character development to run throughout the film
‘Every slasher film opens with the mean girl getting killed and the good girl living till the end. And i thought, how can i make the mean girl and the good girl the same person?’
The character of Tree changes the idea of a final girl. Prior to the modern generation, final girls were typically the strong sole survivor who faces a usually successful final showdown with their antagonist