We found a dynamic visual illusion with binocular viewing when the occluding and/or the occluded objects have motions. Human perceive an illusory object more clearly than without the motion. Especially, when occluding (illusory) object is a polygon, and the object is rotating, human perceive the anomalous depth change of the polygon. For this perception with monocular viewing, human perceive anomalous size change, shape change and eccentric motion of an occluding illusory polygon. We call this illusion as 'Rotational Dynamic Illusion'. We have observed that the degree of perception was different for the rotational speed of the polygon and it was increasing gradually in the time course of observation. Moreover, we expected that these characteristics have close relation to seasickness, devotion phenomena such as in game and so forth. In this paper, we study about these characteristics of Rotational Dynamic Illusion.