Sonic Boom: Fire & Ice - Nintendo 3DS Harness the power of fire and ice to blaze through obstacles, puzzles, and freeze enemies in their tracks. Utilize Sonic's speed, Tails' flight, Knuckles' strength, Sticks' Boomerang and Amy's hammer to explore, fight and race through an undiscovered land. Compete with your friends in 2 player bot racing. Collect artifacts to compete on six additional tracks. Battle bosses so huge they take up both screens. Play mini games filled with challenging puzzles and time trials including a new iteration of the popular Sea Fox.