Tetra appeared in The Legend of Zelda: The Wind Waker as a respected pirate of the Great Sea. After getting attacked by the Helmaroc King, she is dropped onto Link's home island on his birthday. Link sets out with her to fight the new evil. Later in the game, Tetra was revealed to actually be Zelda.
In the Super Smash Bros. series
Tetra has a trophy in Brawl. It can be collected by playing Coin Launcher, collecting in the Subspace Emissary, or through random pickup in Boss Battles or All-Star Mode.