Bubbles copyright Craig McCracken, Cartoon Network and other entities. I own nothing.
This picture is rather obviously based on the episode "Bubblevicious".
Sure, Bubbles is the cutest, the sweetest, the happiest, the lovingest, the one most likely to believe her stuffed octopus is talking to her or that a butterfly is giving her magic chalk, the most 'fraidy, the most easily hoodwinked, the most often kidnapped, considered by friend and foe alike to be the "weak link" of the Powerpuff Girls...
..but boy, when she gets mad, She. Gets. Mad. You DON'T want to end up on her bad side when she's angry. She WILL beat you within an inch of your life. She's VICIOUS.
MS Paint, as per usual.