The movie we've first knew as "Godzilla 1985" was originally quite different (and possibly more exciting?) in it's early conception. A large portion of the plot concerned the infamous monster Bagan, who was a shape-shifting creature who plagues Japan and faces Godzilla in it's combined "totem pole" form, incorporating elements of a dragon, monsterous simian, and fish creature (3 forms it took individually prior).
Taking some visual cues from the final product, I inserted Godzilla locked in battle with Bagan to give a possible idea how this may have looked. Suit actor Hurricane Ryu had done a series of drawings depicting several unmade kaiju (most which I have used as a basis for my past illustrations), and that is where this image of Bagan draws inspiration from...but with more of a man-in-suit feel.