
Sonic Underground
Robotnik organizes a track meet to lure Sonic into a trap.

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.

Sonic and Tails team up to thwart Robotnik's scheme to possess the magic Deep Power Stones.

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.

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.

Antoine is appointed king of a cannibal biker gang.

The time travel mission fails and puts the Great Forest at risk.

After a disastrous mission, Sonic regrets that they can't go back and prevent Robotnik's takeover.

When Sonic loses his memory, Snively takes advantage and gets the hedgehog to infiltrate Knothole.

When Sonic loses his memory, Snively takes advantage and gets the hedgehog to infiltrate Knothole.

Sonic and Sally meet a new ally, but Sally doesn't trust him.

Robotnik announces his intention to give up villainy, and Sonic is forced into retirement.

When a Rebel Base is threatened by Robotnik, Sonic and Tails team up with Big Mike and Da Bears.

When a Rebel Base is threatened by Robotnik, Sonic and Tails team up with Big Mike and Da Bears.

When S and G rocket to outer space, Sonic and Tails stow away.