Although Larxene is normally smiling, she can be undoubtedly cold, ruthless, and uncaring, and appears to love nothing more than to bring people down. She has sharp wit and sardonic remarks ready to spite others. Her jokes tend to be more ill-humored as well, enabling anyone to successfully get irritated, and sometimes if pushed far enough, yell or charge at her in anger, a reaction which she seems to find humorous. Along with the callousness, however, she oddly displays childish and playful behavior, laughing and giggling excessively. Laid back and almost passive to those she likes (or refers to as good company), Larxene expresses herself in a dramatized manner, constantly making outrageous statements and hand movements. She taunts Vexen incessantly and toys with Sora before fighting him the first time.