Sonic Boom: Shattered Crystal is a platform-adventure game developed by Sanzaru Games for the Nintendo 3DS. Released in 2014, it's part of the Sonic Boom spin-off franchise, featuring a unique visual style and redesigned characters. Players control Sonic and his friends Tails, Knuckles, and newcomer Sticks as they explore levels, solve puzzles, and battle robots created by the series' antagonist, Dr. Eggman. The gameplay is a blend of traditional Sonic speed and exploration with a greater emphasis on narrative.