Sonic Boom: Fire and Ice will come out on September 27th, 2016 for the Nintendo 3DS.
The game was originally scheduled to launch in 2015, when the game was delayed to add more ‘polish’. Since then, there hasn’t been much talk about the future of Sonic Boom until today, when the final release date has been set.
Sonic Boom: Fire and Ice will be launching exclusively on the Nintendo 3DS when it arrives this September, meaning the Nintendo Wii U or possibly, the Nintendo NX will be left out.
Source: IGN.com
