Kid at heart: (
Target Group) Titles which, although made for adults, remind us of the sort of shows we used to like as children.
Fighting: (
Story/Location) Series whose primary focus is fighting would fit into this segment. (More precise) Subgenres include "
Gun-Action", "
Martial Arts" and "
Swordplay".
Kawaii: (
↗kawaii (
可愛い) = "cute" or "adorable") If you've watched anime in Japanese, you've heard characters use the term 'kawaii'. So if the title makes you want to say that (often using
↗chibi characters, i. e. small and super-deformed), then it fits.