Originally Posted by Nintenduendo
Yes. I'd love to play as an Adult OoT Link prior to him becoming the Hero's Shade. There's a lot more story to him than what was stated in OoT and MM. You can tell just by his words as the Hero's Shade.
What words? Hero's Shade was extremely depressed because he never shared his skills with anyone, as he never had a heir. His deep seated connection to the Triforce of Courage granted his wish to help out the next hero should one be needed down the line, which of course there will be as long as the Triforce exists.
This confirms that the separate Links do not come from the same lineage.
Also a theory of mine about what truly happens during the events of MM.
Throughout OOT, Navi doesn't seem to display an emotional attachment to Link, other than the fact that she's been tasked with helping him save the world. Link ventures into the Lost Woods in search of Navi, his "old friend" (or love, as link is pretty attached to her), who kind of, well, took off at the end of OOT (her quest was over). Link is obviously heartbroken, and in hysteria, recklessly gets lost. It is unknown how long Link had been in the Lost Woods for, so I'm going to assume it was for an extended period of time, and that Link would have been exhausted/starved/etc enough to hallucinate (which explains why the people that Link meets are variants of the Hyrulians).
Link's encounter with the Skull Kid is meant to mirror his internal feelings about his and Navi's friendship. Link obviously manifests himself as the Skull Kid, and Navi as Tael. Link sees Skull Kid's bullying of Tael as a mirror of his and Navi's relationship. Tatl, on the other hand, is a constant reminder of Navi's leaving him (hence the condescending personality).
Throughout Termina, the lack of the Goddesses can be attributed to Link's hopelessness due to Navi leaving him: he hates the Goddesses, and he sees them as hating him back. The moon, as well, is a symbol for the inevitability of Link's emotional collapse. Link has to work through his grief, and revisit his entire life (Hyrulian counterparts) in order to avoid a breakdown.
The masks are symbolic of Link's confusion about his friendship with Navi. The four main masks in particular (Elegy of Emptiness: He's just a hollow shell), allow him to hide his true self. It is only in the moon, by giving away almost all of the masks that he acquired, that his transformations become obsolete, and he experiences an emotional revival of sorts (Fierce Diety).
Furthermore, the Moon Children's questions reflect rather well on this:
Your friends... What kind of... people are they? I wonder... Do these people... think of you... as a friend?
Link has to face the fact that Navi didn't really consider him a true friend.
Your true face... What kind of... face is it? I wonder... The face under the mask... Is that... your true face?
Link is terrified of his "true face", he blames himself for Navi's abandonment (hence viewing himself as the Skull Kid).
The right thing...what is it? I wonder...if you do the right thing...does it make...everybody...happy?
He's a bit disappointed that he (the Hero of Time) was left by his perceived best friend.
What makes you happy? I wonder...what makes you happy...does it make...others happy, too?
Link is realizing the one-sidedness in his and Navi's friendship.