I also like Guntz as he feels like the prefect middle ground in difficulty compared to Klonoa's fast attacks and Pango's timed explosive attacks. I also like how Guntz isn't a hero throughout the series either. in beach volley ball he is acting on his own, in DCT he is against Klonoa with his own motives. and in Heroes he starts off as reluctantly supporting Klonoa to wanting to protect and avenge Klonoa. i would argue in the whole series Guntz has the most character development.