This energy would be connected to the movement of the particles (not any other of their characteristics). We call this energy "kinetic" energy; generally the word "kinetic" means movement .
If you want to differentiate it from the energy coming from the movement of objects, you can say: molecular kinetic energy
Cel animation is the traditional, hand-drawn animation technique that involves drawing and painting objects on celluloid (cel), a transparent sheet. Nearly all the cartoons in the pre-1990 era were created using cel animation