corner Grant at the Visitors Center. The Raptor plays for only five levels. Along the way, stray dinosaurs can be bothersome for the Raptor, who can knock them out. The enemy guards wield grenades and missiles but can be easily overpowered by the Raptor, although the final level increases the guards' presence and temperament. The Raptor's health item is generic "meat", although it has the ability to eat a "compy" to refill its health as well. Development Acclaim Entertainment and Activision had both bid for the rights to produce the Sega Genesis version of Jurassic Park, but lost to Sega. Doug TenNapel, who created Earthworm Jim, was the lead artist for the development team. The game's animators consulted experts who worked on the film on how the game's dinosaurs should look. The development team also consulted with paleontologist Robert Bakker, who dissected a supermarket chicken to demonstrate the similarities of dinosaur anatomy to bird anatomy. Bakker also appeared in a commercial for the game. For the game to reflect the latest dinosaur discoveries and theories, the development team took field trips to museums of natural history; and to zoos to observe the feeding habits and physical movements of birds and reptiles, such as ostriches and alligators. Jurassic Park was the first game by Sega to be developed using Silicon Graphics computers at the company's new development facility; such computers were previously used to create computer-generated dinosaurs for the film. The 3D models for the game's dinosaurs were created using stop motion photography while a team member was filmed acting out Grant's movements and was then digitized. Many dinosaur models used for the film were sent to the game's development studio so they could also be filmed and digitized while in motion. A $75,000 Velociraptor puppet from the film was also used for production of the game. The game features "Artificial Dinosaur Intelligence" that causes the dinosaur enemies to react differently every time a level is played, giving the player a unique experience each time. Elements from Michael Crichton's novel, Jurassic Park, were featured in the game, including the presence of procompsognathus and pteranodons, and the Jungle River attraction. The game used the film's original planned ending, in which Grant would eliminate the velociraptors by manipulating a Tyrannosaurus rex skeleton in the visitor center. The game's volcano level was not featured in the novel or the film. Sam Powell composed the