Bessie Bass

Bessie Bass is a giant Boss Bass (or possibly a Big Bertha), and the mid-boss of World 3 in Yoshi's Island DS.

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

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

In her battle against Yoshi, Bessie Bass is assisted by several Tube Guys, who Yoshi can swallow for eggs to fight her.

Trivia

 * Unlike the original Big Berthas, Bessie Bass cannot does not shoot young fish out of her mouth. This, along with her jumping abilities, shows that she behaves much more like Boss Bass in terms of their appearance together in Super Mario Bros. 3.