"A little sweet, a little spice, but to zombies she is not so nice." - Gingersun flower description (PvZ battle for neighborville)

Costume of: sunflower
character(s) wearing the costume: Tao Blu (Splatoon 3)

(yeah the charactera name hasn't been revealed yet so its just 'unnamed blue ringed octoling' for now)
edit/update: so today (12/27/23) it was recently revealed that the name of the character is Tao Blu (Hyodo Tao in JP)