Majora's Mask is the sixth installment in The Legend of Zelda series and the second using 3D graphics, the first being The Legend of Zelda: Ocarina of Time, the game's predecessor. Considered by critics to be "darker" among the Zelda games franchise, Majora's Mask is set in Termina, an alternate version of the usual series setting of Hyrule, where the Skull Kid has stolen Majora's Mask, a powerful ancient artifact. Under its influence, the Skull Kid causes the land's moon to slowly fall towards Termina, where it crashes after three days. The main protagonist Link repeatedly travels back in time to the beginning of the three days to find a way to stop the moon from destroying the world.
The gameplay is centered on the perpetually repeating three-day cycle and the use of various masks, some of which allow Link to transform into different beings. Link learns to play several melodies on his ocarina, which have a variety of effects like controlling the flow of time or opening passages to four temples, which house challenges Link must overcome. Unlike Ocarina of Time, Majora's Mask requires the Expansion Pak, which provides additional memory for enhanced graphics and more on-screen characters. Majora's Mask was acclaimed by critics, who praised the graphics and complex story.