First video: I think the animation is a gif, and I remember one of the members on the forum using it as a signature/avatar image.
Second one: I liked this one, All klonoa models on this one looks like custom made for this video, and unlike the models we have (in gmod, etc.) properly rigged and also well textured. (I remember exact Hatsune model from somewhere, it's copypaste.) However, the engine looks like horrible, animations are bad, shadows are bad too. A decent game engine running realtime looks much better than this.