I actually have a smoother version halfway working, but I didn't have more time to carefully test over and over to make sure it moved to the exact screen positions I needed, so I saved that scripting to a different enemy and went back to the FF5 way for the video.
But in the end, it'll probably be the smooth, FF6 "move while slightly shaking" style. Perhaps I'll leave the FF5 version of the movement for the Tonberry King. =P