Klonoa has a really dynamic playing style, most of his moves are amazing and he has a ton of movement to him. However, I think he feels extremely slippery. Dash attack, F.Tilt, and D.Tilt all make him bolt forward, as well as a more controllable grounded U.Special. His U.Air is kind of strange, and his F.Smash has a ton of range. I think I might need to inspect the usefulness of the D.Special for now, but right now it just seems akin to that of Kirby/Tails' hammer. His Final Smash is pretty powerful, and his sprites are really really high quality in comparison to that of the older characters.
I will argue that him and Pac-Man are neck-and-neck for best newcomers. Maybe Bowser, but something seems off about him. If there's anything wrong with Klonoa, it's probably kill moves, but I doubt it.