They’re a digimon with lots of issues. PTSD from her life of abuse, and she lost her best friend wizardmon. She’s tough and mature and intense. Feels cynical about life due to not having the life she wanted.

As the slave of Myotismon, Gatomon was initially willful under his enslavement, defying him with the spark of courage in her eyes. Left with a number of physical and emotional scars, she became quite bitter and spiteful, doing whatever she wanted when not under his domain. However, she was not a cruel being. In her heart, she longed for her destined partner. This kindness led her to save the life of one who would become her first friend, Wizardmon.

Upon discovering her true purpose and her Digidestined partner in Kari Kamiya, Gatomon became outright defiant against her former master.

Among the partners of the Digidestined, Gatomon is especially independent of thought and spirit. Due to her cruel past, she is very perceptive of the bigger picture, and accepts that which she cannot change. In this way, she works at the de facto leader of the partnered Digimon.

Later on in her life, though still haunted by her memory of Myotismon, Gatomon became far more playful and mercurial, often raiding the school cafeteria with the other Digimon while their partners were in school along with getting high off of catnip by accident. In this way, Gatomon's bottomless stomach made her much like her friends and colleagues Gatomon is an Animal Digimon. It has a very healthy curiosity, so it loves pranks. Although its body is small, it is a precious Holy-species Digimon, and its appearance does not match the true strength it possesses. It wears a Holy Ring on its tail, but if it is lost, its power is decreased and it can no longer exhibit its original power. In order to defend itself, it wears long claws. She can come across as quite bitter and spiteful and is very loyal to her friends Gatomon can evolve into ANGELWOMON.