Stone Tower Temple

The Stone Tower Temple is the fourth dungeon in.

Entrance to the Temple
The dungeon is at the top of the Stone Tower in Ikana Canyon. Link can access this Temple after learning the "Elegy of Emptiness", which invokes lifeless clones of Link so that slacked switches can be pressed and held. This is the only way to activate the platforms that allow the young hero to make his way to the top, where the lifeless clones are needed again to gain access to the entrance itself.

Themes and Navigation
Unlike the other three dungeons in the game, the Stone Tower Temple requires the use of all four of Link's forms: Hylian, Deku, Goron, and Zora. This dungeon is also unique in the fact that, thematically, it does not reflect the current situation of the region of Termina where it is located. Ikana Canyon is experiencing a dark age because of the rise of spectra, undead creatures and other beasts; in contrast, Stone Tower Temple does not even show the depressing atmosphere like the outside conditions. Instead, it is a light-themed dungeon that features a potpourri of other elements, including fire, water, and even sky. In addition, the setting of the boss battle is desert-themed.

Hylian Link is useful to solve puzzles pertaining to light, as he is the only form that can use the Mirror Shield. Nearly midway through the dungeon, he will encounter the Garo Master, whose defeat will grant him the Light Arrows. These mystical Arrows can be used to turn the dungeon, and the whole of Stone Tower, upside down. This is done by firing a Light Arrow into the Red Emblem fastened to the wall just outside of Stone Tower Temple. Other than that, the Light Arrows are also used to twist some rooms, as well as to defeat certain enemies whose weak points are evidently marked by emblems not unlike that of the Temple's entrance. They are also used to remove Sun Blocks that can only otherwise be dealt with with the Mirror Shield, and even then there needs to be a light source.

As for the other forms, Goron Link is useful to cross lava rooms, and his brute force will also be called for use. Zora Link needs to swim through a large body of water, and while Deku Link is already required to fly through a chasm prior to the Garo Master's room, he becomes entirely vital when the Temple is upside down, as most of the rooms will turn into large chasms due to the new position of the sky. The young hero's alternate forms also come into play in rooms where the "Elegy of Emptiness" is used to press slacked switches. The Boss Key is guarded by Gomess, who can only be defeated with Light Arrows and then the Sword. A corridor containing a tougher than usual Eyegore is found on the way, and Link must defeat this Eyegore to continue. The creature's defeat reveals a chest containing the Giant's Mask. Once this is obtained, Link can continue until the boss room is reached. Inside the room, he will find himself in a desert, which is the home of the temple's boss, Twinmold. Defeating Twinmold yields a Heart Container and the final quest mask, Twinmold's Remains.

If Link collects all 15 Stray Fairies, he will be rewarded with the Great Fairy's Sword, a powerful blade.

Trivia

 * This is the only area in Majora's Mask where normal-sized Poes are found.
 * Close observation of the dungeon map reveals that once the Red Emblem is hit with a Light Arrow, the Temple not only flips upside down, but mirrors itself as well.
 * Similarly to the way the temples could be completed out of the natural order in, the Stone Tower Temple can be completed before the Great Bay Temple as long as Link first obtains the Hookshot from the Pirates' Fortress. Ice Arrows are not needed to reach the top of Ikana Canyon, as standing at a close enough edge is enough to grapple onto a small tree.
 * In the dark room with the Armos statues below the area that branches off to the halls containing a Death Armos squad, there are two Armos Statues that cannot be moved, yet moving near one makes the "Grab" command appear.
 * The Stone Tower Temple has many remarkable similarities to the Desert Palace from . Both dungeons have strikingly similar architecture (structures like disembodied heads for which the mouth serves as the entrance to the dungeon) and are located in desert environments. Moreover, the bosses of both dungeons, Twinmold and Lanmola, are nearly identical in terms of physical appearance, surroundings, mannerisms and weaknesses.
 * A light green spiral vortex can be seen in the sky from the first room (exactly over the warp pad that takes Link to the boss room). It is easiest to view at night, but can also be found during the day. When compared to the beam of light which activates the boss' warp pad, seen here, it appears to possess the same animated texture.  If this is true, then the 3D disc most likely executes a harsh stretching animation during the one-time cutscene which Link triggers on his first return to this warp pad.  Since Stone Tower Temple is the only open-air dungeon in the game, this would then most likely be a graphical oversight by the developers.
 * There is a large, oddly shaped statue in the Temple that, when flipped, appears to be a massive idol of Majora's Mask or the Majora entity itself.