Jak II is a video game in which the player takes on the role of protagonist Jak. The game contains an entirely new move set for Jak, called Dark Jak, as well as more moves from his Jet Board and gun. Daxter also has some special surprises for players to discover. Additionally, there are escort mission levels where players must work with another character to complete tasks. Enemies have been programmed with advanced A.I., allowing them to respond to the actions of Jak intelligently and strategically.