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1. Just a lab rat ( Cannot turn back) by Gamergirlsnooks

   Fandoms: Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (Video Games)  

   • Mature
   • No Archive Warnings Apply, Graphic Depictions Of Violence
   • Multi
   • Work in Progress

   28 Mar 2026

   Tags

   • No Archive Warnings Apply
   • Graphic Depictions Of Violence
   • Rouge the Bat & Shadow the Hedgehog
   • Miles "Tails" Prower & Rouge the Bat
   • Miles "Tails" Prower & Sonic the Hedgehog
   • Big the Cat & Sonic the Hedgehog
   • Big the Cat & Shadow the Hedgehog
   • Big the Cat & Froggy
   • Big the Cat & Rouge the Bat
   • Sonic the Hedgehog & Original Character(s)
   • Rouge the Bat
   • Shadow the Hedgehog
   • Original Sonic the Hedgehog Characters
   • Miles "Tails" Prower
   • Big the Cat
   • Froggy (Sonic the Hedgehog)
   • Sonic the Hedgehog
   • Alternate Universe - Canon Divergence
   • Alternate Universe - Lab Experiment
   • Mentioned Team Dark (Sonic the Hedgehog)
   • I will update the tags as I go
   • I was listing to Ivycomb when I made this AU
   • Song: Lab Rat (Ivycomb)
   • Team Dark Lives Together (Sonic the Hedgehog)
   • Team Dark are Family (Sonic the Hedgehog)
   • Sonic! Lab Rat
   • Sonic! Lab Experiment
   • Not Beta Read
   • Fluff
   • Fluff and Angst
   • Angst
   • Big the cat is Sonic's Father
   • German Shadow
   • Native American Shadow
   • Surgery
   • awake during a surgery
   • Sonic OC's and Sonic are siblings
   • Miles "Tails" Prower and Sonic the Hedgehog are Siblings

   Summary

   No one really knows Sonic's past, not even himself. He thinks that he lived and taken care by Big. But that is a lie, because one day Sonic gets a attacked and brought to the one who created him. Sonic is just like Shadow, a Lab Rat but inside he cannot turn back to his old life after learning this.

   The title is the lyrics to Lab Rat by Ivycomb ( this whole Au is base that Song lmao; I love their songs)

   Series

   • Part 1 of Lab Rat Au

   Language:

   English

   Words:

   3,486

   Chapters:

   5/?

   Kudos:

   6

   Bookmarks:

   3

   Hits:

   143