Blue Swirl is one of the two skins released in the Retro Deal part of the Retro offer. The design of this skin is inspired by the classic video game character and franchise called Sonic the Hedgehog. Blue Swirl could be purchased as part of an item deal for a limited time in January 2017.
Blue Swirl could be purchased for $9.99 in a deal that included 16000 coins. It could also be purchased for $19.99 in the “Best Deal!” which included the Jumper skin and either 50000 coins (Browser) or 1800 DNA (Mobile). This skin was not available for individual purchase and may not be available for purchase in the future.
Details of this skin may vary depending on location, platform or time.
Note: The Retro Deal sub-offer was released again for a limited time in mid May 2019 and then in early September 2019. In these re-releases, the deal that included 16000 coins was lowered to $4.99. The Best Deal was lowered to $9.99 with the included coins being reduced to 30000. The package of DNA was no longer an option on either platform.