The Legend of Zelda is a video game franchise which has released games for over 3 decades. Over the years there
have been many theories regarding individual games, or the series as a whole, that fans have speculated upon.
The Legend of Zelda Ocarina of Time/Majora Mask Theory - Link is Dead
There is a popular theory regarding The Legend of Zelda Ocarina of Time and Majora's Mask, which states that the Link
from Ocarina of Time is not in fact the same Link as in Majora's Mask, and that he is in fact dead; this link supposedly became a Skull Child, and is the Skull Child constantly tormenting the Link in Majora's Mask. This theory is further supported by the fact that Link constantly traveled through the Lost Woods, and children who get lost in the Lost Woods become Skull Children if they're not the Kokiri, which Link is not, he's a Hylian. Another theory is that he was killed when he was thrown off his horse, Epona, at the beginning of the game.
Majora's Mask - Five Stages of Grief Theory
Skull Kid & Majora's Mask
About Themes in Motion
Themes in Motion was an article project I started up a little over a year ago, aimed at exploring the thematic elements packed into each story in The Legend of Zelda series. I’ve already carved my way through all of the games, but for Majora’s Mask‘s birthday I wanted to give it a special second look. The idea that Majora’s Mask is a trip through the five stages of grief is not my own original conception, but it’s one that I find tremendously profound and I hope I’ve done it some justice.
Clock Town - Denial
You cowards! Do you actually believe the moon will fall? The confused townsfolk simply caused a panic by believing this ridiculous, groundless theory. The soldiers couldn’t prevent the panic, but outside the town walls is where the danger is! You want answers? The answer is that the carnival should not be canceled!
If the soldiers wish to run, then run, Viscen! We councilmen will stick to tradition. This carnival will be a success! I’ve never heard of a defense unit abandoning its town! -- Mutoh the Carpenter
Woodfall - Anger
We’re about to punish the foolish monkey who kidnapped the Deku princess! He has insulted the Royal Family. I’ll show him what happens when you do that! That foolish monkey is up in that cage. Take a good look at his face! -- Deku King
There’s one glaring problem with the proceedings, however - the monkey is completely innocent. In fact, when the princess went missing he was working together with her to investigate the source of the vile swampwater flowing forth from the temple. Rather than putting his energies at work in search of the princess, he instead takes his anger out on the poor monkey. The real villain at work is anger - the evil sown by the Skull Kid, manifesting in the cursed swamp, the toxic rifts that divide us in moments of rage, and the fury and might of the Deku King himself.
Snowhead - Bargaining
As I am, I can only watch as Goron Village is slowly buried in ice…I may have died, but I cannot rest. So, you can use magic? The soaring one also told me that you are able to use it… I beg you! Bring me back to life with your magic! -- Darmani's Ghost
Great Bay - Depression
and her missing eggs. Though Mikau’s passing would by itself be plenty of cause for grief, with the Zora Mask Link is able to assume the part-time musician, part-time hero’s life seamlessly, as though he has never left. This nonetheless leaves Lulu in isolation, gazing out to the Great Bay Temple from the outside of Zora Hall. Her isolation reflects depression, the fourth stage of grief.
Inside the Great Bay Temple, Link also works to reconnect - though for him this is about redirecting water flow through the various pipes twisting throughout the dungeon. Inevitably, getting all the water flowing again restores life to the place, leading him to the final confrontation with Gyorg, during which he dives headfirst into that pool of tears and emerges victorious. His success is celebrated by a musical performance in the Zora Hall - a mirror to Lulu’s own performance of the New Wave Bossa Nova.
Ikana Valley - Acceptence
Happy Mask Salesman
Legend of Zelda series. He is a traveling collector and seller of strange, rare, and unusual masks. He is often considered one of the most unnerving characters in the series, due to his erratic behavior, unpredictable temper, strange powers, and occasional displays of hysteric outbursts. Partly due to his unique and mysterious demeanor, there are many theories as to the Happy Mask Salesman's true identity and motives; in The Legend of Zelda: Majora's Mask, he gives Link many subtle hints that he may be more than a common collector of masks.
Link and his accomplishments in Hyrule and can tell what Link went through to obtain a particular mask or the power inherent in the mask, without ever seemingly leaving his post in the cave beneath Clock Town's clock tower. This is not his only strange characteristic - he also seems to appear as if from nowhere, appears to change from one pose to another instantly, and has been seen vanishing into thin air. He also manages to make a giant exaggerated piano appear from out of nowhere to teach Link the "Song of Healing". After Link learns the song, it disappears. Also, if three days pass and Termina is destroyed, Link appears back under the clock tower where the Salesman waits. Though this could also be interpreted as the game resetting to the moment before the dawn of the first day, the Salesman's laugh is heard just prior to the reset, accompanied by dialogue he had spoken previously, suggesting the Salesman may have transported Link back through time.
of his eyes. However, when he opens them during one of his violent outbursts, they are red. Red eyes are a characteristic commonly connected to the Sheikah. However, the red eye color may stem from the fact that the eyes are bloodshot during his frantic episodes. Additionally, in Ocarina of Time, the Happy Mask Salesman gives Link the Mask of Truth as a reward for selling his masks. The Mask of Truth is a well-known artifact of the Sheikah race. It could be that he somehow obtained the mask during his travels, but it could also have been passed down to him by his would-be ancestors, the Sheikah.
the mask resembles the upper head of a rabbit, including the eyes and ears. The ears will flop around due to a "jiggle-bone" program when Link walks or perform most other movements such as using the sword and/or jumping.
siblings of Nintendo. This is supported by the fact that Sharp is the elder brother, short, somewhat wide, and wears red, which is similar to Mario, and Flat is the younger brother, tall, thin, and wears green, which is similar to Luigi; additionally, the Composer Brothers both have mustaches, as do Mario and Luigi. Furthermore, the inscriptions on their gravestones read "Royal Composer Bros."; this truncated form of "brothers" may be a reference to Super Mario Bros.
The relationship Zelda has with Link is close, possibly her closest. A popular theory among
fans is that of a romantic relationship between some of the Zelda and Link characters in the Zelda series. Although never explicitly confirmed in a video game title, this theory is based on hints given in the games, interviews with the game creators, and content of the animated series, comics, and manga (although the last three are generally considered non-canonical).
One hint of a romance between Zelda and Link is given at the end of The Adventure of Link, when the awakened Princess apparently kisses Link under the falling curtain.
Some cutscenes in Ocarina of Time featuring the two together have been interpreted as signs of an attraction. While Link and Zelda are escaping Ganon's Castle, Zelda will additionally show her concern for Link by shouting out whenever he is hurt. Moreover, in the game's final scene, Zelda and Link are floating in the sky together, sharing a decidedly sentimental (if not necessarily romantic) moment where Zelda apologies for involving Link in the events of the game and seems saddened by the situation. She also stated that she will not forget the time she spent with him in the Child Timeline as shown in Majora's Mask through Link's memory.
In addition, if the Oracle games are played as sequels to each other, the ultimate ending sequence shows Zelda lightly kissing Link on the cheek. Link swoons while hearts float above the pair's heads, and Zelda looks away, blushing. In The Wind Waker, when Zelda is asked to stay in hiding in Hyrule Castle while Link restores power to the Master Sword, she waves goodbye to Link, asking him to be careful.
Spirit Tracks features several moments that can be interpreted romantically. Early in the game
during the Graduation Ceremony, Zelda walks into the room in front of Link, who is bowing down respectfully. Link then looks up and gasps, blushing at her in amazement. He is then scolded by Chancellor Cole for raising his head without permission. Later, when Zelda's spirit is separated from her body following the first encounter with Chancellor Cole and Byrne, Link is the only one who can see her besides the Lokomos, demonstrating a clear and strong bond between himself and the Princess. After Zelda and Link defeat Byrne in the Tower of Spirits, Byrne, disbelieving, comments that he was beaten by two humans. Zelda, while still possessing a Phantom, says that when she and Link combine their strength, no one can defeat them. Link turns to her, surprised. The background turns white and Zelda's Lullaby plays as they both laugh and high-five, gazing at each other all the while. Toward the end of the game, before the final battle against Malladus, Zelda is reunited with her body, and is no longer able to levitate. Link runs underneath her to catch her as she falls, and she lands on top of him and knocks them both to the ground as well as knock Link out for a few seconds. Upon awakening, Zelda, overjoyed to have her body back, embraces Link, causing him to blush. Finally, after Malladus is defeated, Zelda and Link watch Anjean and Byrne's spirits ascend to the heavens. The camera then lowers to show Zelda and Link holding hands while Zelda's Lullaby plays in the background. After the credits, a short cut scene shows Zelda gazing at a picture of Link on the Spirit Train with her flying beside him, which she keeps on her desk. she may also wave at Link depending on his answer to a question Zelda asked before.
Skyward Sword has several noticeable romantic moments between Link and Zelda. Early in the game, Zelda wants Link to be the first to see her outfit for the Wing Ceremony. She worries over him and she does not want him to fail at becoming a knight. When Link's Crimson Loftwing is hidden by Groose, Zelda assists Link in finding his Loftwing. After Link wins the Wing Ceremony, Zelda jumps off the ledge and Link catches her almost as if she was expecting him to. She then congratulates him on winning. Afterwards, Zelda mentions that she is very happy to be atop the Statue of the Goddess with him. She also gets extremely close to him and almost implies that the two are to kiss, before she pushes him off the statue. Afterward, Zelda bashfully asks Link to go out flying which they do. She then tells Link how amazing the day was, and that she would remember it forever. At the Temple of Hylia, when Zelda states she must seal herself to keep Demise in place, she sheds tears of sadness and states before all this, she was happy just being with Link on Skyloft, demonstrating a deep level of feelings for Link. Link desperately tries to stop her and when she is sealed, Link lowers his head in sadness, showing his deep feelings for her. Much later in the game, when Link releases Zelda from her sealed state, Link runs up and catches her from falling and both of them hug and walk out smiling at each other, holding hands, before Ghirahim ruins the tender moment. During the ending, Zelda asks what Link will do now. Link sweetly smiles at her while their Loftwings fly off toward the sky, implying that he chose to stay on the Surface to live with Zelda.
A Link Between Worlds features some gossip told to Link by the Rumor Guy. He tells Link that one of the castle staff had seen Zelda sneaking off every night. When she followed her, she saw Zelda staring at the painting in Hyrule Castle depicting the Link and Zelda from A Link to the Past cuddling with each other, implying they became more intimate with each other. This also hints the Zelda in A Link Between Worlds wants to have a similar relationship with the Link of her time.
The game creators also seem to be fond of the idea of romance between the characters.
Though never directly stated in-game, Shigeru Miyamoto revealed in an interview conducted by Famimaga 64 that Navi is jealous of Princess Zelda and has feelings for Link.
Another less popular theory among fans is that Link and Zelda are related by blood, either as siblings or more distantly. Even though rumors to this effect started with the infamous "Save the Princess... Zelda is your... ... ..." line from A Link to the Past (later reported as a mistranslation), the theory generally revolves around the Link and Zelda from Ocarina of Time.
A possible indication of a blood relation between the two in Ocarina of Time is their physical resemblance: they both have blonde hair, blue eyes, and similar facial features. They also have similarly shaped heads. Graphics limitations could be responsible for some of this similarity, however. Certain dialogue could also be perceived as implying a blood relation: the ghost Sharp comments that Link reminds him of Zelda, and that Link "may have some connection with the Royal Family". Link's connection to the Royal Family is highlighted throughout the game, with Link often playing Zelda's Lullaby to verify it. The fact that Impa agrees to teach a strange boy a song only Royal Family members are allowed to know could also be interpreted as a hint at Link's blood relation to Hyrule's Royal Family. 
Additionally, Zelda seems to recognize Link's name upon their first meeting. This could be attributed to her prophetic abilities, although the boy in her dreams seemed to be a largely abstract figure, with no defining traits aside from the presence of a guardian Fairy and a Spiritual Stone. This line of dialogue has often been regarded as a sign that the two have met before, although this could only have occurred when Link was a baby per the Deku Tree Sprout's account of Link's coming to Kokiri Forest. It is also worth noting that while the King of Hyrule is clearly identified as Zelda's father, no mention is made of a Queen. Meanwhile, Link's mother is stated to have died shortly after reaching the forest, but no information is given concerning his father. Given these facts, it is possible that Zelda and Link share the same parents, making them siblings.
"During Ganondorf's dark reign, many evil beings walked the earth, but none were as horrible as
the ReDead. These skeletal creatures froze people who strayed too close, then they sucked the life from the unfortunate victims."
— Nintendo Power Player's Guide description ReDeads (リーデッド Rīdeddo?) are recurring enemies in the Legend of Zelda series. They are highly emaciated, undead humanoid creatures, closely resembling zombies. They are found in dark and distant locations such as Hidden Holes and dungeons. ReDeads are capable of completely halting the movement of their prey with their gaze when they come close; concurrently, they emit blood-curdling screams to terrify their unfortunate victim. They will then close in on their stunned victim, and in most games will attach to them to drain their life energy. ReDeads are considered to be among the most frightening enemies of the Legend of Zelda series.
It is possible that ReDeads were once regular, deceased Hylians who happened to be re-animated through exposure to dark magic, or that they are, like Poes, restless spirits wandering the world of the living. Considering the abundance of ReDeads found in the devastated Hyrule Castle Town of the future, as well as underneath the Kakariko Graveyard and inside the Shadow Temple, this theory seems plausible.
The differences in appearance and habits between the different incarnations of ReDeads may suggest changes in burial customs over the passing of time. ReDeads found in Ocarina of Time and Majora's Mask are sometimes encountered underneath graves, and appear to be wearing carved Spooky Masks over their faces. ReDeads found in The Wind Waker are decidedly teal-colored. Since these corpses were all buried below sea level, it is possible they were punished for evil doings, and forced to haunt Hyrule forever.
It is speculated by some that alternate worlds such as the Twilight Realm and Termina may be unaffected by the timeline split. However, while these two realms are alternate dimensions, there is no evidence to support the idea that they exist outside of linear time. Both realms have demonstrated the ability to receive beings from the Child Timeline and return them to the Child Timeline when they exit back into Hyrule. There is no reason to believe that these two realms would only exist as a single timeline, or that they could "prioritize" inputs from one timeline, and later output these into both the timelines.
In addition, the renowned Youtube show, Game Theory, dismissed the Zelda Timeline, particularly the Defeat Timeline (in where Link fails on his quest) on the grounds that "the hero cannot be simultaneously victorious and defeated". Elaborating, he explained that with Link defeating Gannondorf, two perfectly possible timelines are created; However if Link dies at any point in his journey another separate timeline is created. Explaining that the only way for all 3 timelines to exist is the Many Worlds Theory (the theory that all possible pasts and futures exist in separate timelines). 
It is possible that the Stalchildren of Ocarina of Time are Kokiri who have left the Kokiri
Forest, thus turning into Stalchildren. They could also be Hylians who are suffering the effects of the Lost Woods, with a Stalchild being an intermediary stage between a Hylian and a Stalfos. However, since the Stalfos transformation is supposedly imposed on those unable to find their way out of the Lost Woods, it seems unlikely that such individuals would appear in Hyrule Field. Additionally, Kokiri are seen outside the Forest during the end credits of Ocarina of Time, suggesting that their law of "Those who leave the forest will die" is simply a warning of the dangers posed by the outside world.