Though unnoticed by Sonic, Zonic was responsible for numerous examples of crossover, including the Universalamander incident, a few Evil Sonic battles, and the Giant Borg incident. Sonic never noticed Zonic's presence until an encounter with Sally Moon, and Dr. Ivanna Robotina, during which Zonic makes his presence known in order to speed up the returning of Robotina to the Luna Zone. Zonic explained that Sonic is called upon often because he is the Prime Zone's Sonic, and is destined to be the champion of all realities. (SSS: #8)