
Sonic Underground
Sonic, Manic and Sonia find an abandoned baby in an alley and begin to look for the baby's parents.

Sonic, Manic and Sonia find an abandoned baby in an alley and begin to look for the baby's parents.

Robotnik blackmails Cyrus by kidnapping his father and holding him hostage.

Robotnik blackmails Cyrus by kidnapping his father and holding him hostage.

A speed enhancing fluid deemed Sonic Tonic is created by Robotnik to make him as fast as Sonic.

A homecoming is interrupted for Sonic, Sonia and Manic when Sleet and Dingo arrive to collect taxes.

A homecoming is interrupted for Sonic, Sonia and Manic when Sleet and Dingo arrive to collect taxes.

Sonia discovers that the watch she received from her friend is actually a monitoring device.

Sonic, Manic and Sonia stumble upon an oasis called Lake Valley Resort.

Sonic, Manic and Sonia find an abandoned baby in an alley and begin to look for the baby's parents.

Sonic, Manic and Sonia find an abandoned baby in an alley and begin to look for the baby's parents.

Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast.

A captain of the Queen's guard is captured before he can reach the secret rendezvous.

The Hedgehogs congregate on the Floating Island in their latest effort to find their mother.

Sonia is invited to a debutante ball, but she and her brothers must go on a mission first.

Sonic must save Santa Claus from kidnappers on Christmas Eve.

Sonic must save Santa Claus from kidnappers on Christmas Eve.

Sonic and the Freedom Fighters travel to Robotnik's lab hoping to decipher his Robotisizer system.

Sonic and the Freedom Fighters travel to Robotnik's lab hoping to decipher his Robotisizer system.

Sally is taken prisoner by Robotnik and Snively, who construct a robotisized Sally clone.

Sally is taken prisoner by Robotnik and Snively, who construct a robotisized Sally clone.