Barney Bubble

Barney Bubble is an enemy who only appears in Super Mario World 2: Yoshi's Island and its remake, Yoshi's Island: Super Mario Advance 3. Barney Bubble is a purple ball with blue feet, although its artwork depicts it as white with red feet. Its name is a pun of from .

Two Barney Bubbles appear in the level Monkey's Favorite Lake. They quickly run back and forth. Red Yoshi cannot eat a Barney Bubble, and can only defeat it by throwing an egg at it. Whenever Red Yoshi stomps on a Barney Bubble, it produces bubbles, which Red Yoshi can eat and spit out for a variety of uses. Bubble Dayzees produce the same type of bubbles.

In Yoshi's Island: Super Mario Advance 3, two more Barney Bubbles appear in the World 6 Secret level, Endless World of Yoshis, during the forest area, making there a total of four Barney Bubbles.