Bessie Bass

Bessie Bass appears to be a giant Blurp; Bessie Bass is a boss in the third world of Yoshi's Island DS.

When first encountered Bessie Bass is only slightly larger than a Yoshi; through the use of his magic though, Kamek was able to grow Bessie to monstrous proportions.

In battle, Bessie would attempt to attack Yoshi by crushing him with several small leaps out of the water or by making a giant jump out of the water and trying to fall downward on Yoshi and eat him, jaws wide-open. It is only when Bessie makes one of these large leaps that she is vulnerable to an attack. While Bessie is in the air, Yoshi must hit her on the lips to injure her; hitting Bessie three times on the lips will be enough to defeat her.

In her battle against Yoshi, Bessie is assisted by several Tube Guys, whom Yoshi can swallow for eggs or simply ignore.

She is most likely based on Boss Bass from Super Mario Bros. 3.