> You will encounter and battle a group of 7 demons throughout the game, and Ghirahim is one of those demons.
> The evil group are the silhouetted figures from the prologue footage.
> A pig-like demon that closely resembles Ganon is the leader of this group.
> Despite this, Majora is the final boss in the game - due to some shocking plot twist that takes place shortly after you defeat the Ganon lookalike.
> Majora is weakened; his soul eventually sealed within a mask.
> In order to defeat the Wind Fish (who has been corrupted by one of the seven demons,) you must lull it to sleep with the use of Zelda's harp.
> The final shield upgrade in the game results in a red, circular shield.
> Link defeats the group of demons; weakening them just enough for them to be banished (or sealed) to other lands, dimensions; what-have-you - but at a terrible price...
> The old Sheikah woman is guarding the Triforce, which is sealed behind a door within the Temple of Time.
> The Sheikah were once servants of the Goddess, and their duty was to protect and maintain Hyrule from evil forces, or from people who desired the Triforce's power.
> It's strongly suggested that Zelda and Link do love eachother; but there are only a few romantic hints and nothing more. (In other words, no kiss.)
> Contrary to the recent claims and rumors, Zelda DOES NOT DIE.
> In order to slay the seven demons, the descendant of the goddess must sacrifice herself.
> Zelda attempts to sacrifice herself in order to destroy the seven demons for good, but Link manages to stop her.
> The demons are instead, banished or sealed away to other realms - but they are still alive in some form or manner. This explains why future incarnations of Link find themselves transported to other realms, worlds or dimensions. It's his destiny and purpose to destroy the sources of evil for good.
> Zelda is descendant of the Goddess, who, in fact - was not an actual diety, but a mere mortal who was worshipped and mistaken as one.
> The Skyward Sword and the lyre were infused with essence of the three goddesses, explaining their tremendous magic power.
> The same essences are used to upgrade the Skyward Sword into the Master Sword.
> The leader of the evil group, although weakened and defeated by Link and Zelda, manages to avoid being banished or sealed away. Instead, the essence of his soul is left to linger throughout Hyrule - planning and waiting for the next opportunity to seize the Triforce.
> A majority of the Sheikah were massacred by the demons in their attempt to protect Hyrule over a span of hundreds and hundreds of years.
> The Sheikah created a sentient android race to aid their forces. They are stone-like creatures that vaguely resemble the Oocca, and were once responsible for maintaining and creating much of the ancient, magical technology that we see throughout the game - including Phi.
> The Silent Realm exists as a "time manipulator" for the Sheikah. It was capable of "reversing" certain events, in case if something catastrophic were to happen to Hyrule or the Triforce.
> However, the Silent Realm was eventually assaulted and 'deactivated' by the evil group, who scattered and manipulated the sources of energy needed to 'stabilize' the realm. In other words, the realm is litterly 'frozen' in time, hence the title, 'The Silent Realm.'
> You must collect the 'tears' of energy and transfer them to special crystals in the normal realm in order to reactivate fractions of the Silent Realm.
> Once you have reactivated a crystal - it will 'reverse' the effects of time within a certain area, essentially restoring the lands to their pure, original state.