Jason Voorhees a child's voice before being submerged in toxic waste, and in "Jason Goes To Hell" where his spirit possesses other individuals. Online magazine Salon's Andrew O'Hehir describes Jason as a "silent, expressionless...blank slate." When discussing Jason psychologically, Sean S. Cunningham said, "...he doesn't have any personality. He's like a great white shark. You can't really defeat him. All you can hope for is to survive." Since "Friday the 13th Part VI: Jason Lives", Jason has been a "virtually indestructible" being. Tom McLoughlin, the film's director, felt it was silly that Jason had previously been just another guy in a mask,
Jason Voorhees he added chains and shackles, and made the hockey mask more angular. Jim Isaac and the rest of his crew wanted to create an entirely new Jason at some point in the film. The idea was for the teens to completely destroy Jason's body, allowing the futuristic technology to bring him back to life. What was referred to as Über-Jason was designed to have chunks of metal growing from his body, bonded by tendrils that grew into the metal, all pushing through a leather suit. The metal was created from VacuForm, the same material used to increase the size of