ジャック×ダクスター 旧世界の遺産/ Jak and Daxter: The Precursor Legacy

Jak and Daxter: The Precursor Legacy is a 2001 platform video game developed by Naughty Dog and published by Sony Computer Entertainment for the Sony PlayStation 2 on December 4, 2001, as the first game of the Jak and Daxter series. The game follows the protagonist, a young teenager named Jak, as he tries to help his friend Daxter after he is transformed into an "ottsel", a fictional hybrid of an otter and a weasel. The game offers a large range of missions, collectables and objectives, often in the form of minigames, which provide a variety of gameplay experiences, as well as puzzles and platforming stages, which are completed by the player to proceed with the story.

The opening sequence of the game features Jak and Daxter in a speedboat headed for Misty Island, an area prohibited by their watch over Samos. Upon arriving to the island, Daxter had second thoughts about straying from the village. The two perch on a large skeleton to observe a legion of lurkers crowded around two dark figures, Gol and Maia, who were commanding the lurkers to "deal harshly with anyone who strays from the village," and to search for any precursor artifacts and eco near Sandover Village.[4] After the secret observation, Jak and Daxter continue searching the island. Daxter trips on a dark eco canister which he tosses to Jak after expressing his dislike for the item, and as Jak caught the object it lit up. Shortly afterwards a bone armor lurker suddenly confronted the two, where Jak threw the dark eco canister at the lurker, killing it, but inadvertently knocked Daxter into a dark eco silo behind him. When Daxter reemerged, he was in the form of an ottsel, and upon realizing the transformation he began to panic.