Black Yoshis are a Yoshi variant that first appear in Yoshi's Story. They can first be found in secret areas of World 2. Along with White Yoshis, they has certain abilities that give him advantages over the other Yoshis.
They can be found in large, hidden eggs on pages 2-1 or 2-4. Black Yoshis and White Yoshis are the only Yoshis in Yoshi's Story that enjoy all the fruit, even the red Peppers. In addition, Black Yoshis can eat other things that the rest can't, such as Black Shy Guys. Another special power he possess in Yoshi's Story is that his eggs explode in gigantic explosions, destroying more than one enemy at a time. Black Yoshi has a very low voice, in fact the lowest of all the Yoshis in the game. If the player loses Black Yoshi, the White Shy Guy cannot retrieve him.
Yoshi's Island DS
Black Yoshis reappear in Yoshi's Island DS and are playable in the secret levels of each world.
Mario Tennis series
Mario Power Tennis
In Mario Power Tennis, Yoshi can change colors every time he performs a Rolling Egg Return, provided the player has completed the Flower Cup with any character. One of the colors that Yoshi can turn into is black.
Mario Tennis OpenMario Tennis Open as a downloadable QR code character. He is an all-round type character.
Paper Mario: The Thousand-Year Door
Mario & Luigi: Partners in Time
In Mario & Luigi: Partners in Time, Black Yoshi appears once, during the battle with Sunnycide (This Black Yoshi was not present in all but the U.S. versions of the game, with a Yellow Yoshi taking his place). Like the other Yoshis, he can be freed from his egg, where he'll run to push a rock. He is the second to hatch when opening the Yoob egg.
List of Game Appearances