If you have already completed the Gorman sidequest and chosen a different sister to live in the house, you cannot get it. Just do the sidequest and choose Nayru to live in the house.
There isn't a Black charm. There are only three colors of charms. Red, which is Din's charm, Blue, which is Nayru's charm, and lastly Farore's charm gives you a purple tunic. It's all on choice. The black charm may simply be a texture hack. Good luck on texture hacking then, for in the GBA's Zelda's like Minish Cap and Four Swords, there is not a Dark Link, therefore no black tunic. I am sure the black tunic would have caused negative effects, however, if it had existed.
You should get Oracles of seasons the minish cap rather the links awakening.
you dont get a shovel in minish cap you get the mole mits which let you dig also in the wind ruins.
You have to get the power bracelet.
By using an emulator.
in the library.
If you want to
my guess is about 10.
By getting a life.
zelda the minish cap
In the Temple of Droplets
You need to get the flippers.