Tails is working on a new robot to sell to investors, when Fiona pops on by his home to say hi. Naturally he's got mixed feelings on all this, but that old Flame still burns even if only an ember. She claims to have changed and seems a little different but hes still wary. Little does he know Fiona is dealing with problems from her past. Can he help her find repemption?

Sonic the Hedgehog is selected as one of the lucky few chosen to be put into cryosleep until the day a cure is discovered for the mysterious and fatal disease known as Chaos, but upon waking, the facility is overtaken by strange thorns and dangerous monsters! What happened? How long has it been? Will Sonic and his companions escape the facility alive? Or is this all just a dream?

When Eggman shatters the planet in seven pieces and unleashes a monster that's inside the planet, Sonic must go on a world adventure with his friends to fix the planet and stop the beast. However, Sonic must also deal with a transformation that occurs when the sun goes down, as well as something thats inside him.

Tails returned to Christmas Island to meet Sonic's childhood friends but he meets two somebodies who he never hoped to see. Gyan is back and now is targeting Tails to get her revenge.

Being the assistant to Dr. Robotnik is a chore sometimes. But Miles Prower wouldn't have it any other way. Between the inventions, an actual place to call home and a few (albeit mechanical) friends, life is good. As long as the big project in Green Hill zone goes smooth, the world will soon be all theirs. I mean really, what's the worst that could happen? Assistant Tails AU

In a broken, dying world, Silver must learn to control his powers in order to survive. With the help of his mentor, he must brave the dangers of the deadly continents and find the Chaos Emeralds before it is too late...

My take on the Sonic the Hedgehog mythos, with cues taken from all over the franchise. Inspired by Mixedfan8643's Sonic the Hedgehog: Heroes of Mobius. Now has a TV Tropes page.

After three years of peace, the Metarex return with a plan involving the manipulation of the fake Chaos Emeralds, a plot which Sonic and his friends must rise up to fight, especially when they learn it leads to a timeline in which Amy loses her life. But when the choice falls to Sonic whether Amy lives or dies, Amy questions if she can trust Sonic with her life after all.

10 years after the games the Sonic Characters are in relationships and advancing in life. Sonic and Amy have the most smallest crushes on each other. A game of Spin The Bottle turns into a future forever relationship with some expected turns and twists along the way.(Requested by:AMYROSEANDSONIC0.) (A series.)

A transmission relayed to her father promising information on Eggman prompts Sally to meet with this stranger. The polar bear behind the message, however, is more than deserving of her suspicion.

Hi, my name's Annie. My parents, Sonic T. Hedgehog and Amy Rose are two of the most well known heroes on the planet. My family, are their friends and we're pretty close. I was never going to have a normal life, not like other kids. I liked it that way until robots started to attack my family and now we've got a lot to figure out. These are my memories.

There are those who choose to either stand against or achieve the impossible, in order to 'free' those suffering from the world's evils. Even if the Eggman Empire itself stands in their way. Cue the Freedom Fighters. With key figures; the heroic Sonic the Hedgehog and the royal Sally Acorn leading the charge, they'll restore hopes and dreams, and leave miracles in their wake.

Kuro lives with the cliff of death for almost the last couple of years of his life. Hardly anything else to live for besides booze, girls, and oodles or treasure to sell and spend on. If it looks good or useful to Kuro, then it shall be taken away. If a girl catches his eye, then it's a few charms and a bed for them. Bottles will be empty. Treasure missing. And the darkness.

After the death of Cosmo, Tails descends into his own depression and insanity while dealing with every day struggles.

Sonic 06 oneshot, takes place during Sonic's ending. After narrowly escaping Dr. Eggman's airship, Sonic and Elise take a few moments to reflect on their crazy adventure together. Read and review

When Sonic accidentally discovers his best friend's ageplay kink, Tails finds himself in a role play that he has previously only dreamed of. Warning: Contains infantilism / ABDL themes / diapers and diaper usage, and mature ageplay and sexual themes.

How I got reincarnated as Sonic The Hedgehog.

Sonic and friends must unite to save the world from extradimensional threats.

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what it says on the tin

A new guest arrives through the Lunar Gate bearing a strange power and a thirst to reverse... something. Confused and frustrated, he seeks to save those he lost in his world. Meanwhile, Tails' work on a very special device leaves her best friend with bigger problems... (Crossposted from AO3, Part 4 of the Resounding Echoes AU)

Framed for a crime he didn't commit, Sonic goes on the run with his friends when a dangerous and incredibly powerful doppelganger makes him public enemy number one. Facing all kinds of enemies- new and old, of Earth or in space- the truth about fifty years ago will be uncovered as Team Sonic tries to prevent this shadowy figure from exacting his vengeance upon humanity. (READ S1&2)

Leaving one's family and destiny isn't an easy thing to do, but Sonic needs to get away to discover if he's the prince his siblings want him to be, or the hero his heart is telling him he is. Three years later, Eggman kidnaps Manic, and Sonic is drawn back into the world he left behind, but now he can do more than rely on his medallion. He can fight. /Bridging Underground and SEGA/

My second revamp of my Sonic the Hedgehog origin, now incorporating elements from the live-action movie. Please read and review.

*Slight AU* A prequel series to the "Sonic and the Werehog" Universe: (A Sonic X and Sonic Adventure mix fanfiction)-Itching for a new place to explore, Sonic the Hedgehog decided to go to Station Square, a human populated city where he will meet up with old friends, discover new ones, and deal with the threats of not just Dr. Robotnik, but other dangerous threats as well.