redesigned, the Predators wrist blades being extended roughly four times longer than those in the Predator films, and a larger mechanical plasma caster was created for the Scar Predator. The basic shape of the Predator mask was kept, although technical details were added and each Predator was given a unique mask to distinguish them from each other. These masks were created using clay, which was used to form moulds to create fiberglass copies. These copies were painted to give a weathered look, which Woodruff claims "is what the Predator is all about". A hydraulic Alien puppet was created so ADI would be able to make movements faster and give the Alien a "slimline and skeletal" appearance, rather than using an actor in a suit. The puppet required six people to run it; one for the head and body, two for the arms, and a sixth to make sure the signals were reaching the computer. Movements were recorded in the computer so that puppeteers would be able to repeat moves that Anderson liked. The puppet was used in six shots, including the fight scene with the Predator which took one month to film. The crew tried to keep CGI use to a minimum, as Anderson said people in suits and puppets are scarier than CGI monsters as they are "there in the frame". Roughly 70% of scenes were created using suits, puppets, and miniatures. The Alien queen was filmed using three variations: a 4.8-meter practical version, a 1.2-meter puppet, and a computer-generated version. The practical version required 12 puppeteers to operate, and CGI tails were added to the Aliens and the queen as they were difficult to animate using puppetry. The queen alien's inner-mouth was automated though, and was powered by a system of hydraulics. Anderson praised Alien director Ridley Scott's and Predator director John McTiernan's abilities at building suspense by not showing the creatures until late in the film, something Anderson wanted to accomplish with Alien vs. Predator. "Yes, we make you wait 45 minutes, but once it goes off, from there until the end of the movie, it's fucking relentless". Music Austrian composer Harald Kloser was hired to create the film's score. After completing the score for The Day After Tomorrow, Kloser was chosen by Anderson as he is a fan of the franchises. It was recorded in London, and was primarily orchestral as Anderson commented, "this is a