Tina is a character featured within The Minish Cap. She is one of the teachers at Funday School and is the twin sister of Dina. Tina is a believer that playing during recess is just as important as studying, using the logic that a healthy body leads to a healthy mind.
Link is able to fuse Green Kinstones at various points in the game with Tina. As it is a Green Kinstone fusion, it is not set to a specific treasure chest, but instead, one of the many possible treasure chests. There is one random Red Kinstone within the game that opens up a location in the Hyrule Castle Garden leading to a Piece of Heart, as well as a random Blue Kinstone that opens up a tree in North Hyrule Field leading to a Fairy Fountain. Tina is one of the many characters in which Link can make these Kinstone fusions with.
Tina has nearly an identical sprite image as her sister Dina, with the only difference being that Tina wears a purple dress and has purple hair, where Dina has a red dress and has green hair.