Sonic Underground
Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast.
Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast.
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Scratch and Grounder build their own robot, a naive, overgrown kid called Robot.
Sonic loses his memory when Dr. Robotnik uses a hypnotic flower pollen on him.
Sonic and Tails help a mermaid try to save her underwater city.
Freedom Fighters are obliterated by a swarm of metallic fly-bots; Manic looks for the insects.
The Hedgehogs steal historical objects of Mobius from Robotnik.
The Hedgehogs discover that Sonia has inherited a castle; She basks in the idea of having a castle.
Robotnik organizes a track meet to lure Sonic into a trap.
Sonia is invited to a debutante ball, but she and her brothers must go on a mission first.
Sonic, Manic and Sonia stumble upon an oasis called Lake Valley Resort.
Queen Aleena's journals are buried in the city of Tashistan; Sonic and his siblings search the city.
Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast.
Robotnik blackmails Cyrus by kidnapping his father and holding him hostage.
Sleet and Dingo plan to collect the taxes owed to Robotnik but keep it for themselves.
The Freedom Fighters prepare for what may be their final battle.
Uncle Chuck finds himself increasingly at risk operating as a spy in Robotropolis.
Sonic and Tails team up to thwart Robotnik's scheme to possess the magic Deep Power Stones.
An indestructible war machine attacks.
Antoine must share his house with Sonic.
Within the Void, Sonic and Nicole encounter a mysterious wizard named Naugus.
Dulcy is summoned to a dragon mating ground as Robotnik seeks to roboticize them.
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