I'll admit to having put a little too much thought into making a Klonoa fighting game (considering, well, smash ain't letting him in anytime soon) and, while I originally thought of Tat as more of a support character, she really does deserve to be on the roster as her own. Since I'm always one to favor aesthetics over actual competitive use, I honestly wonder what creative ways she could be shown taunting or blocking an attack...
Tat would pretty much be the reason that taunts would be needed in a game like this.
Hell, I'm pretty sure Tat is the reason there are taunts in beach volley.