some passages blocked for one but accessible for the other. Among the action-adventure gameplay are sections of on rails shooting, such as a chase where the player shoots at dinosaurs that are chasing an automatically driven vehicle and, like the previous game, several puzzles. Throughout the game, the player finds data files and documents that progress the story and give details of certain areas. Hidden "Dino Files" can also be found; these go into detail about each dinosaur in the game. Upon collecting all the available Dino Files, the player is granted unlimited ammunition for weapons on the next play through. Extra Crisis Upon completion of the main game, there is an unlockable mode known as Extra Crisis with two gameplay modes: "Dino Colosseum" and "Dino Duel". Colosseum is a survival mode where a chosen character with their own pre-set weapons fight off series of attacks by certain dinosaurs, the larger and more deadly being the latter. Upon completion the player is graded and awarded a trophy on how well they performed. Dino Duel is a mode that allows the player to take control of a dinosaur and battle another in the style of a fighting game. Completion of the game on harder difficulties allows more characters and dinosaurs to become available for purchase, using the final Extinction Points gathered from that play through. These include Gail and Rick, two characters from the first game. Dinosaurs can also be used in Dino Colosseum, but they must be unlocked by completing the game in normal or hard mode. Characters Regina (Stephanie Morgenstern) - A member of Secret Operations Raid Team (SORT), Regina is the only returning character from Dino Crisis that features in the main story. She is extremely intelligent, and is skeptical of Dylan's abilities at the outset, calling him "Mr. Barbarian", before going it alone. Dylan Morton (Gabriel Hogan) - Part of the Tactical Reconnaissance and Acquisition Team (TRAT), an off-record covert group of shady characters recruited from the United States Army Special Forces. They focus on subversive activities, e.g. jailbreaks and insurgency. Paula Morton (Lisa Yamanaka) - A recurring character. This teenage girl is part of a helmeted syndicate that is hostile towards Regina and Dylan. She appears childlike and is unable to form complete sentences. Paula shares a special connection with Dylan. David Fork (Eric Hempsall) - Another prominent TRAT member, David is a heavy weapons specialist