After Zelda was turned to stone and the Picori Blade broken, Link is sent to find the Minish, tiny inhabitants of Hyrule, to have the blade reforged and turn Zelda back to normal. This is because only children can even see the Minish.
Kid Hero: Actually used as a plot point, since, as mentioned above, him being a kid allows him to see the Minish/Picori.
Legacy Character: The only Links coming before him are Skyward Sword Link and maybe the hatless hero. Also possibly Hylia's chosen champion, if his apperance from the manga included with Hyrule Historia is taken as canon.
Super Strength: With the Power Bracelets, Link can push many objects like large bookcases and can push a pot several times larger than his body at Minish size.
Took a Level in Badass: The sword Skills make Link use the Great Spin Attack, Roll Slash, and many other nifty moves. One of the few Links to get actual sword techniques.
In The Minish Cap, he was actually Big Bad Vaati's mentor before his Face-Heel Turn. Now trapped in the form of a hat, Ezlo guides Link on his adventure by allowing him to shrink to the size of a Minish and explore the Mouse World.
Nice Hat: Has the unique distinction of being the hat.
Shipper on Deck: At one point, he suggests to Link that he should ask Zelda out on a date after he rescues her.
A mysterious robed figure who won this the annual Picori Festival's swordfighting tournament. His goal was to obtain the Light Force and become a god. He was originally a Minish who became evil by being "enchanted by the darkness in the hearts of men". He stole his mentor's wish granting cap, transformed his mentor into a hat himself and took on a humanlike form.
Badass: Oh yes. To elaborate, his first appearance involves him incapacitating four armed guards and breaking the Picori Blade.
He is a very physical villain - when there is something to be done, he often does it himself.
Badass Bookworm: He gained all of his knowledge about the legendary Picori Blade and Princess Zelda's Light Force from reading. In addition, he studied sorcery (though a lot of help came from that hat perched atop his head) and the psychology of evil inside of the hearts of men.
One-Winged Angel: Has four, not including his initial minish form, although only his three demonic forms are fought.
Rasputinian Death: One of the most awesome boss battles in Gameboy history. After gaining possession of Zelda and draining the light force from her body, Vaati grows several hands taller, gains a darker wardrobe, and you have to fight this Nightmare Fuel boss not once, but three times before he's finally over.
The princess of the domain of Hyrule, daughter to the king. At the outset of the story she and Link go way back as friends and he accompanies her to the annual festival. However, Vaati petrifies her during the award ceremony, forcing Link to try to repair the broken Picori Blade in order to undo the spell.
A race of tiny elf-like creatures that can only be seen by children. Known to the human world as the Picori, they delight in helping out humans in sneaky ways, such as hiding money and items under bushes and giving them help with their chores whilst they're not looking.
Mouse World: Some even make their homes in hollowed-out books in libraries.
Pokémon Speak: Their normal language is made up of parts of the word "Picori".