Sonic and Tails babysit a trio of unruly baby beavers who end up being abducted by Scratch and Grounder.

Robotnik makes chewing gum that makes the consumer as fast as Sonic.

When Throbbin Screech features Sonic on his talk show, Lifestyles of the Very Good, Robotnik kidnaps his niece in order to be featured on the show.

Sonic and Tails get arrested for speeding due to Robotnik’s nefarious hypnotizing scheme.

Sonic and Tails enter a car race in order to save an orphanage that Robotnik threatens to shut down.

Sonic, Tails and a group of mole miners are hit by Robotnik’s shrink ray and must work together to reverse the effects.

Outraged by a popular song about Sonic, Robotnik outlaws music on Mobius and takes the song’s composer captive with the intent of creating his own song.

Robotnik plans to freeze all of the Mobians in order to make them obedient.

Robotnik pursues Breezie and Robotnik Jr. in order to find out why they betrayed him with the intent of building a perpetually loyal robot wife.

Robotnik has unleashed his Stupidity Ray on Mobius, knowing that the newly-stupefied Mobians will be too brain dead to stop him.

Robotnik seemingly announces his surrender to Sonic, and he invites him to a resort in his gratitude.

Robotnik constructs a pushy robot coach in an attempt to increase Scratch and Grounder’s fitness.

When Robotnik opens up a resort to make resident Mobians his slaves, Sonic enlists the help of some robots from an area of Mobius called Scrap Valley.

Sonic and Tails help an alien prince fix his space shuttle so he can return to his home planet for his coronation before his younger brother is crowned in his…

On Sonic’s birthday, Tails builds a flying bicycle. Realizing Tails’ potential with mechanics, Professor Von Schlemmer invites Tails to be his research assistant.

Robotnik constructs a robot son in order to help him with his conquest of Mobius.

Coconuts acquires a magic wand and magical gadgets from Wes Weasley, and attempts to master them.

Robotnik goes time-traveling to find the four Chaos Emeralds that bestow the user unlimited power. His first stop is the time of Blackbeard the Pirate, where he enlists the pirate’s…

Robotnik’s next stop in his time-travel is the Middle Ages, where the second emerald is. Sonic follows him, but Robotnik, with the unwilling help of a local wizard, obtains the…

In his next time-travel stop, Robotnik plans on erasing Sonic’s family tree in order to get the third emerald.

Despite the intervention of Sonic and Tails, Robotnik obtains the fourth and final emerald in prehistory. With the emeralds gathered together, Robotnik uses them to become an all-powerful being.

Sonic comes to the rescue of a town that is held for ransom by Robotnik’s crime syndicate.

Robotnik imprisons a satirical cartoonist for making fun of him in his comic book, much to the chagrin of his biggest fan, Sonic.

Scratch and Grounder use a ray gun Robotnik invented to transport Sonic, Tails, and Robotnik into a book of fairy tales.

During a fair in his honor, Sonic’s shoes are stolen and he and Tails use detective intellect to find the thief.

A chemical accident caused by Coconuts ends up giving superpowers to Robotnik, who quickly uses them to threaten Mobius’s world leaders and publicly humiliate Sonic.

Robotnik threatens to demolish an airport, a lighthouse, and a train station. Sonic is forced to travel to all three places in order to remove the bombs.

Robotnik sends Scratch and Grounder into space to pillage the asteroid belt, with Sonic and Tails in pursuit.

Robotnik attempts to brainwash MacHopper, a friend of Sonic’s into doing his dirty deeds, but an explosion causes his memory to become unstable.

Sonic frees a prisoner who has been locked at Robotnik’s Fortress for 30 years who wants to find his long lost girlfriend which Robotnik also loves.

Robotnik creates a robot fox family when he finds out that Sonic is trying to find Tails a new home to keep him safe.

Robotnik buys new gadgets from an enterprising salesman to help Scratch and Grounder catch Sonic, but winds up regretting his purchases when they keep backfiring.

Robotnik is after the Power Gems from the city of Submerbia and Sonic and Tails are hired to stop him.

Robotnik creates a robot Sonic suit in order to ruin his reputation.

Robotnik fools Captain Rescue into capturing Sonic after the aging superhero lets his guard down, so Tails must convince Rescue to be his old self again in order to save…

An asteroid is heading for Turtle Town and Robotnik offers to save it, but only if Sonic agrees to play in the Robolympics against him and his robots.

When Sonic saves a female hedgehog named Breezie, he falls in love. Sonic does not know that Breezie is a robot that Dr. Robotnik created to keep Sonic occupied while…

Sonic and Tails escape underground from Scratch and Grounder, but they are held captive there by a miserly mole named Spelunk.

Grounder accidentally puts a “genius chip” in his head and it makes him so smart that he easily captures Sonic and even takes over Robotnik’s operations.

Sonic and Tails infiltrate Robotnik’s new Casino Night Zone to stop him and his henchmen from scamming a group of sheep into becoming Robotnik’s slaves.