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Dual Chaos Control is a move that appears in the Sonic the Hedgehog series. It is a technique in which two near-simultaneous instances of Chaos Control create a space-time rift, which allow someone to travel through time and space.
Dual Chaos Control is a chaos power that utilizes a large amount of energy to create a space-time rift. When this phenomenon occurs, a space-time rift will appear next to the users, which then stays open for a limited time. Entering this space-time rift allows someone to choose to travel to a specific point in either the past or the future, from about twenty-four hours to 200 years. The space-time rift does also seem to allow for travel across space to different locations, such as from the train yard on the edges of Soleanna to the underwater research facility beneath Soleanna Castle Town.
Dual Chaos Control actually requires the energy of two individuals simultaneously inducing Chaos Control, which itself uses the latent energy of the Chaos Emeralds to manipulate space and time.  Dual Chaos Control can be realized by two inductions of Chaos Control performed with the intention of initiating it, or it can be induced on sheer accident due to incidental usages of Chaos Control in close proximity to each other. This technique requires not only two individual users, but at least two Chaos Emeralds.
[[File:STH2006 SL The Talisman 2.png|thumb|225px|left|[[Silver the Hedgehog|Silver standing in front of the space-time rift created by his second Dual Chaos Control with Shadow, from Sonic the Hedgehog (2006).]]
Later on, while fightingeach other, Silver and Shadow triggered a Dual Chaos Control, thereby creating a space-time rift, when they induced Chaos Control simultaneously with their respective Chaos Emeralds during an attack on each other. The pair proceeded to use this space-time rift to travel back in time ten years to the Solaris Project to understand Mephiles' intentions. After that, the pair performed Dual Chaos Control again to return to the present, with Silver lingering briefly to give Princess Elise the blue Chaos Emerald before using the space-time rift too.
Dual Chaos Control was used one more time by Sonic and Silver with their respective Chaos Emeralds so that Sonic could go back in time and prevent Elise's death onboard the Egg Carrier. With a space-time rift formed, Sonic used it to arrive in Soleanna New City the day before, while Silver and Blaze used it to go to Silver's future.
It appears that there is a little bit of imprecision when traveling through time with Dual Chaos Control, as when Team Sonic and Rouge utilize the same rift to travel to the present-day Soleanna New City, as well as when Shadow and Silver do the same, they arrive at the city at different times.