Maya is spunky, perky, excitable, and outgoing. She exudes a childlike personality, being both impulsively curious and easily confused. She often acts without thinking things through, tries to touch strange objects without restraint, and goes on tangents that quickly stop making sense. All of this has caused Phoenix Wright to question her sanity on several occasions. She is very enthusiastic about Wright's job, having picked out many of the clients for him to represent in court, although she would often do so before consulting him first.

Despite her childish and seemingly naïve nature, Maya has demonstrated wisdom through many grueling trials. She is stubborn and persistent, looking out for those she cares about and holding out hope despite overwhelming long odds. Her tenacity, optimism, and loyalty to those she cares about have been important, sometimes even critical, to Wright's successes in court. She consistently puts others before herself, reminding Wright to fight for justice even when her own life was at stake, and staying strong for Pearl despite having witnessed her own long-lost mother's death; putting Pearl's pain over indirectly causing it before her own grief.