Though it is technically or by definition not a main series title, it is the only considerable console release for Sonic this year and, as such, the public, for all intents and purposes, will consider it the main face of Sonic given the money and marketing Sega invested into it. So, no matter how much rhetoric Sega tries to use to say this game is temporary or a branch of the franchise, Boom is very much the main series title for 2014.