Boomer in a pro-antoganist, in the episode special and supporting character of Powerpuff Girls Crossover 2. He is the male Counterpart of Bubbles. Boomer, is the loud-mouthed dimwit of the trio, as opposed to Bubbles' naive sweetness. He is constantly picked on by his brothers, partially because of him being extremely naive (and also, in an extent for his stupidity). In the episode The Boys are Back in Town, Bubbles claimed that Boomer is cute (her sisters told her she's weird after that). Once, his hair was in a neat, curved fashion similiar to Bubbles' ponytails. After he was reincarnated, his hair is much longer and spikier on each end (in a wings haircut). One difference between him and Bubbles is that she is very easily grossed out by most of the icky stuff he and his brothers would always delight in doing. His special power is his ability to drive enemies far in the ground by spiting shown in The Boys are Back in Town. It is also revealed in the episode Bubble Boy that Boomer, (Bubbles in disguise) is the best spitter of the trio. Even though Brick and Butch are in disbelief of the fact that Boomer is their brother, there is no doubt they regard him as important. Boomer is always included in their acts of violence and/or criminal acts. His brothers even show concern when they think he goes missing when they break into the Powerpuff Girls' house. Despite being a villain Boomer is (like Bubbles) the most polite of his group. In The Boys are Back in Town, he is seen to be easily distracted (in this case by a passing fly, which he stopped to play with). Boomer's element is snips and his signature color is cobalt blue.