Jak X: Combat Racing (known simply as Jak X in Europe, Africa and Australia) is a 2005 vehicular combat video game developed by Naughty Dog and published by Sony Computer Entertainment for the PlayStation 2 console. It is the fourth installment in the Jak and Daxter series and the final game in the series to be produced by Naughty Dog. The plot follows protagonist Jak and his allies who, after having been poisoned, must partake in a championship of the fictional sport of "combat racing" in an effort to obtain an antidote. The gameplay differs from previous installments in the series, focusing on arcade racing rather than action-adventure gameplay. However, the driving mechanics of the game were modeled after the previous entry in the series, Jak 3. Furthermore, Combat Racing was the first Jak and Daxter game to feature a multiplayer mode, with the second being Daxter. In 2017, the game was re-released for the PlayStation 4, alongside Jak and Daxter: The Precursor Legacy, Jak II, and Jak 3. Gameplay In Combat Racing, the player controls characters from the Jak and Daxter series, all of which race in customizable dune buggy-style vehicles. The two main modes of play in the game are Adventure and Exhibition. Jak, the main character of the series, is the only playable character in the Adventure mode, and must participate in a series of Eco Cup Championships in the game's story to obtain an antidote to a poison he and his comrades have consumed. Jak can also take part in a variety of Events in the Championships as to earn Medal Points and advance through the ranks. The main event of the game is the Circuit Race, in which Jak must finish a set of laps in a course while avoiding the wrath of the other racers. The player can destroy these racers as well by picking up Yellow and Red Eco weapons, with Yellow Eco acting as an offensive weapon made to attack and destroy opponents, and Red Eco acting as a defensive weapon made to protect the player from incoming attacks. Green and Blue Eco can also be picked up, acting as health recovery and turbo respectively. Causing and taking damage causes a Dark Eco meter to fill up which, once full, causes weapons to become more potent versions of themselves. Save data from the first three Jak and Daxter games, Daxter and Ratchet: