Jubilee had the
mutant power to generate bright bursts of multi-colored energy
plasmoids from her fingertips. She referred to these globules as "fireworks". The globules obeyed her mental control, traveling where she directed them, arranging themselves in balls, streamers, and other shapes, and exploding when she wished. The strength of the energy varies in degrees of power and intensity, and could range from a multitude of colorful sparkles capable of temporarily blinding a person to a powerful detonation capable of smashing objects and destroying property, or a precision burst inside a human brain, simulating the effects of a massive stroke. Jubilee could absorb the fireworks back into her own body without harm. Jubilee often referred to her powers as "pafs." "Paf" appears in many instances as
onomatopoeia for her powers.
While training in Generation X, Emma Frost described Jubilee as having the untapped potential to detonate matter at a sub-atomic level, which in theory is the equivalent of a
fusion bomb. Her moral stance on taking a life was observed by Emma during the "
Phalanx Covenant" when Jubilee explained her fear of killing someone should her powers ever flare up again as they did during the "
Acts of Vengeance" storyline in
Uncanny X-Men where she destroyed an entire house during a panicked moment. Emma Frost stated that Jubilee had unlimited potential and was one of the most powerful mutants she had ever encountered. Her
Age of Apocalypse alternate had minimal qualms in this regard, and made liberal use of her full powers.