Scrapyard

Scrapyard is the second area in Sonic Boom: Shattered Crystal. It is a murky costal region on an island littered with mechanical constructs from the Ancients. On their quest to track Amy down, Sonic, Tails and Sticks came through this area where they recruited Knuckles for their mission.

Scrapyard
Scrapyard is an old, abandoned junkyard. The front part has scrap parts of airplanes in the background, while the back part take place inside a the remains of the giant aircraft. It becomes available after obtaining five Sonic Badges.

Worm Tunnel
The Worm Tunnel is a racing course where the player must reach the end of an underground tunnel while dealing with Driller Worms. It becomes available after clearing Scrapyard and obtaining seven Sonic Badges.

Knuckles' Hangout
Knuckles' Hangout is a visiting place for Knuckles. Here, the player can participate in a daily minigame to earn a Token. It is available from the beginning of the level, but its minigames does not become useable before after clearing Scrapyard.

Q-N-C's Toy Shop
This building is the local shop owned by Q-N-C. Here, the player can trade Tokens for toys and display their current collection. It becomes available after clearing Scrapyard.