Decades ago, the Dingoes had attempted a nuclear strike on Echidnaopolis, which was prevented by the Guardian of that time period, Hawking. In an effort to save all life on the Floating Island from the radiation that began to spread, Hawking transported the Echidnas to one Zone and the Dingoes to another using the Hyper-wave Projector, leaving them there until the island was habitable again. Years later, Dr. Ivo Robotnik fired his weapon, the Ultimate Annihilator, in an attempt to erase Knothole Village and the Freedom Fighters from existence. His plot failed, but the Ultimate Annihilator undid the effects of the Hyper-wave Projector, resulting in the spatial barriers between the cities collapsing. While the people of Echidnaopolis attempted to find shelter (while panicking at the sight of