The Scuttles resemble a cross between a tank and a spider. Colored orange and brown, they have a tank-shaped body with a cannon on top, a large black eye with a slit-like pupil and green sclera up front, and a dome-shaped engine below their rear that keeps it afloat. Additionally, they have a pair of front legs with a bulky front section and claw-like feet.
The Scuttles were created in the Robot Facility by Lyric the Last Ancient five millennia ago to help him destroy the earth's lifeforms and conquer it. During an attack on the remaining Ancients however, the Scuttles were shut down when Lyric was imprisoned. When Lyric escaped in the present day, he recovered them to search for the Crystal Shards and battle Team Sonic too.
The Scuttles are only found in Seaside Jungle. In gameplay, they move back and forth idly until they spot the player, at which point they will rev up and try to ram the characters. Sometimes, they are equipped with purple shields that protect them from harm. However, these shields can be removed with the Enerbeam or plowed through with a Sprint empowered with the "Mega Sprint" upgrade. The player can also only destroy a Scuttle briefly as a new one will later respawn to take its place. Additionally, the sixth Toy the player purchases from Q-N-C's Toy Shop will be a Scuttle figurine.
After Team Sonic and Shadow defeated Lyric, the Scuttles were stopped once more.
The Scuttles are usually mindless and silent drones unwaveringly loyal to Lyric the Last Ancient, having been programmed to obey his every command. Among the Destruction Troops, the Scuttles are particularly menacing and persistent chargers that will haunt their foes.
- The Scuttles' abilities and attack patterns are virtually identical to the Buzz Saws'.
- SONIC BOOM. Characters: Lyric the Last Ancient. Archived from the original on 23 March 2016. Retrieved on 25 July 2014. "As seen in the Nintendo 3DS and Wii U games, Lyric is the last of his kind from an ancient civilization who lived a millennium ago. His race was devoted to peacefully controlling the world’s resources. Driven mad by power, Lyric turned on his fellow Ancients and took control of the resources. Building an army of robots programmed to obey his every command, the deadly snake-like villain set out to destroy everything organic and create a world of twisted metal and robots. However, just before he could successfully take over, he was attacked by the last surviving Ancients and imprisoned forever. With his army shut down and his plans ruined, he waited in prison plotting his revenge. Years passed and Lyric began to give up hope. That is, until Sonic comes across him. Now with his army rebooted, and his plans in place, the only thing stopping Lyric from total victory is Sonic and his friends."
- Sanzaru Games (21 November 2014). Sonic Boom: Shattered Crystal. Nintendo 3DS. Sega. Area/Level: Sonic's Shack - Comic prequel.