Rayman Origins

At the beginning of the game, Bubble Dreamer, Rayman, his best friend Globox, and a couple of Teensies friends are chilling out at Bubble Dreamer's resting grounds, the Snoring Tree. However, their snoring, with the help of a strange microphone disguised to resemble a flower, disturbs an old granny from the Land of the Livid Dead, who retaliates by sending an evil army of horrendous creatures and the Darktoons across the world. The heroes, being woken up, fight back, but are defeated and captured. Rayman escapes and finds out the Darktoons have captured the Electoons that inhabit the world, imprisoned his "mother" Betilla the Nymph and her sisters and plunged the Glade of Dreams into chaos. This causes Bubble Dreamer to go crazy, and as a result, have nightmares. Rayman and his friends are then tasked by the Magician to gather enough Electoons to cure Bubble Dreamer and restore the Glade. Their efforts to locate the Electoons allow them to gain access to the various lands of the Glade, and rescue the Nymphs along the way.
Eventually, they make their way to a mysterious gate, which can only be opened by rescuing the Glade Kings, who have been turned into monsters as a result of Bubble Dreamer's nightmares. Upon freeing the Glade Kings, the Nymphs are able to open the stargate, granting Rayman access to a hideout in the steampunk-themed land of Moody Clouds. There, they discover that their supposed friend, the Magician, is the one responsible for all the chaos. He secretly admires Mr. Dark, the villain of the original Rayman, and he is a Teensy who was mocked by the other Teensies for his lesser magical abilities, and he was behind the events that caused the Land of the Livid Dead forces and the Nightmares to attack: with all the chaos distracting and preoccupying the heroes, and him using the Lums they had given him to power and use his diabolical machines, he would be able to dethrone Polokus and become the new leader of the Glade by controlling the Nightmares out of Polokus' control. The Magician then sends Rayman and his friends into a pit with his mechanical monsters, but they escape and return to his office. The Magician then begins to dance and sends them into a dancing funk, using this as a good time to escape. The heroes chase after and fight the Magician in his escape airship, sending it crashing into the power source of his hideout. The resulting chain of events causes the hideout to explode, while Rayman and his friends free-fall back to the Snoring Tree, where they proceed to resume their relaxation.
If players manage to collect the ten ruby teeth throughout the game, they can gain access to the Land of the Livid Dead itself, where another monster, Big Mama, awaits. Once defeated, it is revealed to be the nymph of the Land of the Livid Dead, turned into a Nightmare because of the Darktoons, and then she thanks her saviours for freeing her.