Sonic Boom: Shattered Crystal is a standalone adventure that shares key
characters, events and lore of the Sonic Boom universe with exclusive
environments and characters, as well as an emphasis on platforming and
puzzles. In addition to Sonic, Tails and Knuckles, gamers will also be
able to take on the role of Sticks, the newest member of the team. She
will play an integral role in the story after her best friend Amy gets
kidnapped by the ancient villain Lyric.