Bubbles is shown to be joyful and naive like her original counterpart, although a bit more airheaded and less intelligent. She displays above average programming skills as shown in the episodes Viral Spiral, The Trouble With Bubbles (episode), and Oh, Daisy!. Like her 1998 counterpart, she is shown to be a major animal lover.
Unlike her 1998 counterpart, she seems to be less girly, but not to an extreme like Buttercup. In the episode Derby Dollies, Bubbles is shown to have taken a liking to sports, implying she may be a bit tomboyish and sporty.
She has quite a temper and can go from cute and docile to demonic at the drop of a hat. She can be a little crazy and aggressive.
Her appearance differs slightly from her original counterpart, as she has bigger hair bunches and visible blue hair ties in her hair.
Also, her hair bunches sit higher up on her head than they originally sat. They are also more curvy at the ends. When her hair isn't pulled up in bunches, she has blonde shoulder-length hair. Like her original counterpart, she wears a blue dress with a black horizontal stripe at her waist, white tights, and black Mary Janes.
In the episode Trouble Clef when Bubbles appears alongside Blossom and Buttercup performing at Morbucks' concert, her hair is tied up in a high ponytail with a mint green hair tie. She wears a pink ballet dress, white tights, and purple shoes with green warmers on them.
In the episodes Man Up 2: Still Man-ing and Summer Bummer, Bubbles is shown to have two different swimsuits. In the episode Summer Bummer, she is shown in a turquoise tankini with yellow polka dots on it. For the episode Man Up 2: Still Man-ing, she is shown in a baby blue tankini with pink outlines on it.
In the Christmas episode The Gift, Bubbles is shown in a dark blue version of Santa's red suit along with a black belt and red pants. Her hair ties are a lighter shade of blue and she wears a blue party hat and black shoes.
Like her sisters, she has the ability to fly at great speeds, fire red laser beams from her bright blue eyes, superhuman agility, enhanced endurance, and superhuman strength (though she can still get her bones broken). In "Princess Buttercup" It's shown that she and Blossom can use super speed.
Blue Energy Projection
She also has the ability to make light blue-colored energy constructs of animals (such as a rabbit, bear, dolphin, or rhino) out of pure light blue energy. She can control these energized vicious animal forms at will. Her 1998 counterpart does not possess the ability whatsoever in the original series.
Like her original 1998 counterpart she also possesses the power to emit unusually strong hypersonic blasts and ultrasonic screams from her mouth, that is capable of shattering glass, stone, concrete easily and knock opponents back.
She can attract a crowd of people with her irresistibly melodious and angelically hypnotic songs. According to Mojo Jojo in Tiara Trouble, she has a hypnotically irresistible singing voice similar to that of an angel which can shatter glass, stone, and brick with ease.
Her other special ability is talking to and understanding the speech of animals.
In "Viral Spiral" she is revealed to be an expert at programming computer software; such as games and even hack into the internet itself. This is a trait that her original counterpart does not possess.
In "Once Upon a Townsville" She was ready to fire a laser beam, but the dragon blocked it by blowing some fire on Bubbles.
In Power-Up Puff, she claimed that she has an allergic reaction to meatloaf.
Bubbles' voice is less squeaky compared to her original counterpart.
Bubbles seems slightly more mature at times than her original version.
Bubbles has a trait for controlling/programming computers, unlike her original counterpart.
When Bubbles' blue-energy projection glows, there are little circles/ovals that can be seen floating around the outline for it. In reality, the circle is a symbol of joyfulness, being caring, and peacefulness.
Originally, Bubbles’ hair ties were differently designed as shown in the storyboard for the pilot episode Escape from Monster Island.