Kitten

Kitten, formerly Queen Alua, is the main protagonist of Gravity Rush and its sequel. Having started out as a lost girl with no memory, Kitten quickly embraces a superhero role within the city of Hekseville as a shifter. Her adventures eventually take her to the ends of the world, where she is allowed glimpses of her clouded past.

She is known as Kat in English localizations.

(Source: Gravity Rush Wiki)