Nina Dowd/The Mighty Endowed (DC Comics) can hypnotize people with her breasts.
Natalie's (Epic Battle Fantasy) weapons are her Magic and Huge Breasts.
Kusakai Mio (Keijo!!!!!!!!) can hypnotize people using her Breast Hypnosis Technique against anyone.
Hououin Sanae (Keijo!!!!!!!!) using Perky Pile Piper.
Kawai Hanabi (Keijo!!!!!!!!) using Tit Spirit to push Nozomi with incredible force.
Sakashiro Maya (Keijo!!!!!!!!) dueling Kaminashi Nozomi with Heaven and Hell breast strike.
Black Cat (Marvel Comics) uses her breasts as ballast.
Maiden who carried the ambrosia of the gods like Dorothenea (Nectar of Dharani) can use the “nectar” in her breasts to empower whoever indulge in them, with the price of turning into a berserker to fight in her behalf.
Melona (Queen's Blade) can use this power, as her acid infused breasts melt all they touch.
Ageha Kurono (Rosario+Vampire) using her Oppai Missile special attack.
Miyuri Tsujidô (Seikon No Qwaser) releases powerful energy blast from her breasts, obliterating anything in her path.
Maria (Seikon No Qwaser) are known for their "soma", a mystical substance found in their breast milk that empowers all Qwaser to manipulate periodic elements for battle.
Ivy Valentine (Soulcalibur series) can use her large breasts to her advantage.
Raven Hex (Tarot: Witch of the Black Rose) can channel her magic through her breasts to create powerful blast.