The destruction of the world's core greatly weakens and disables Rayman's powers, which leads to his subsequent capture and imprisonment aboard the Buccaneer, a prison ship. Globox, a friend of Rayman, is also captured and put in the same cell as Rayman aboard the Buccaneer. Globox gives Rayman a Silver Lum given to him by Ly the fairy, which temporarily restores some of his powers. Rayman escapes the prison ship through a chute, however during the escape he once again separates from Globox. After falling from the ship, Rayman eventually finds himself in the Woods of Light. Rayman decides that his best chance is to find Ly, and begins his search through the forest. He comes across Murfy, a "flying encyclopaedia", who serves as Rayman's guide throughout the game, as well as three of Globox's children. Rayman sadly informs them of his separation with Globox, much to their dismay. The children inform Rayman that Ly has been captured by Robo-Pirates and has been taken deeper into the forest.
Traversing deeper into the forest, Rayman frees a group of Teensies—small creatures with magical abilities—whom were locked in a cage. After bickering amongst themselves about who among them is their king, they inform Rayman of the Ly's location in a stronghold within the Fairy Glade. They allow Rayman access to the Hall of Doors for the cost of some Yellow Lums. Once collected, the King Teensie creates a network of portals that connect the Hall of Doors, which Rayman uses in order to access various areas throughout the Glade of Dreams. Eventually, Rayman finds Ly being held captive in a force field within the Fairy Glade. After being freed, Rayman tells Ly of his separation with Globox and his loss of powers. Due to the destruction of the Heart of the World, Ly is unable to restore Rayman's powers. However, she tells Rayman of four ancient masks, through which Polokus, the spirit of the world, must be awakened in order to defeat the Robo-Pirates. The four masks are hidden in secret sanctuaries consisting of the four elements; water/ice, earth/stone, fire, and air. Ly informs Rayman that his only hope is to find the four masks, defeat their guardians, and awaken Polokus.
Concerned by Rayman's progress, Admiral Razorbeard dispatches several warships to pursue and kill him. Rayman approaches the entrance to the Sanctuary of Water and Ice, the location in which the first of the four masks is contained. He defeats its guardian, Axel, in combat and collects the first mask, which teleports him to the realm where Polokus rests eternally. Speaking to Rayman through his dreams, Polokus congratulates him on his find, and urges him to collect the three remaining masks. Rayman travels to the Menhir Hills, where he learns to tame and ride equine-like walking shells. Rayman acquaintances himself with Clark, a friendly giant, who has become terminally ill after accidentally swallowing a Robo-Pirate. He asks Rayman to retrieve the Elixir of Life from the Cave of Bad Dreams, a realm which can only be accessed if the occupant is asleep. Rayman asks a witch doctor to hypnotise him, which transports him to the Cave of Bad Dreams. Once there, Jano, the guardian of the dream world, offers Rayman the choice of eternal wealth instead of taking the elixir. If the player accepts Jano's offer, a humorous ending will play, which depicts an overweight Rayman stranded on a small island, surrounded by treasure. Declining the offer will grant Rayman the elixir, which he uses to cure Clark.
Gameplay
The game is played from a third-person perspective and the player has control over the camera, though in some situations this control is limited to only certain angles. At several points in the game the player loses control during cut scenes, which typically show dialogue between characters.
By collecting lums, the player unlocks more information about the game world and its back story, which can be read by standing still and pressing a specific button for some time. Some back story is also obtained through (optional) instructions from Murfy, a "flying encyclopaedia" who provides explanations on all kinds of gameplay elements.
In contrast to its predecessor, which was a 2D platformer, Rayman 2 is a 3D platformer. The player navigates through a mostly linear sequence of levels, fighting enemy Robo-Pirates, solving puzzles and collecting lums. Collecting enough lums gains the player access to new parts of the world. Part of the lums are hidden in small cages, in which other freedom fighters or Teensies are imprisoned, and can be obtained by breaking the cages.
Rayman starts the game with minimal abilities, and he can gain more abilities as the game progresses. The main weapon available in the game is Rayman's fist, with which energy orbs can be shot. Eventually, the orbs can be charged before shooting them, making them more powerful. Rayman can also enter a strafing stance which allows him to easily aim orbs whilst avoiding enemy attacks. Rayman later gains the ability to swing over large gaps using Purple Lums. Rayman is also able to use his helicopter hair to slow his descent while jumping, with some segments later in the game allowing him to fly with his hair. There are also various items Rayman can use throughout the game, such as explosive barrels he can throw, giant plums he can ride on to carry him across dangerous surfaces, and rockets he must ride on to access new areas.
In addition to the main, story-based level sequence, there are also several levels in which the player can gain bonuses in a time trial. Additionally, by collecting all lums and breaking all cages in a level, the player unlocks a bonus level in which one of Globox's children races against a robot pirate. When the player controlling the child wins the race, Rayman gains health or a powerup.