Sega (Coolot's version)/Sonic the Hedgehog

Sonic the Hedgehog is a very strange franchise so I decided to do my own take on the franchise, starting all the way at pre-Adventure era.

Changes

 * The games' setting is always referred to as Mobius.
 * The games keep the Zones gimmick.
 * The core cast would still consist of Sonic the Hedgehog, Miles "Tails" Prower, Knuckles the Echidna and Amy Rose, although with some tweaks to their personalities.
 * Amy is rather more mature since she would act more professional towards Sonic and she would be more protective towards her friends.
 * Sonic X-Treme would have never been cancelled as Gazebo and Tiara Boobowski would become recurring Sonic characters.
 * Sonic SatAM and its Archie sequel would still set apart from the game canon, although it borrows elements from the canon.
 * Silver, Blaze and Marine would be introduced in Sonic Heroes as an additional team.
 * Shadow wouldn't be overused.
 * [same with the Deadly Six]
 * [not using Classic Sonic]
 * The games considered abysmal would never exist.
 * Sonic Boom would be more successful.
 * The games would be more connected with characters and ideas of past games seeping into other games.
 * The games would be more connected with characters and ideas of past games seeping into other games.

Mainline

 * Sonic the Hedgehog (1991)
 * Sonic the Hedgehog 2 (1992)
 * Sonic the Hedgehog CD (1993)
 * Sonic the Hedgehog 3 (1994)
 * Sonic & Knuckles (1994)
 * Sonic 3D Blast (1996)
 * /Sonic X-Treme/ (1997)
 * /Sonic Adventure/ (1998, first game with full voice acting)
 * /Sonic Adventure 2/ (2001)
 * /Sonic Heroes/ (2003, final game using the Adventure voice cast)
 * Sonic: Corruption (2006)
 * /Sonic Unleashed/ (2008)
 * /Sonic Colors/ (2010)
 * Sonic Through Time (2011)
 * /Sonic: Lost World/ (2013)
 * [better version of Forces] (2017)
 * [various old areas mashing together] (2020)

Handheld

 * Sonic Chaos (1993)
 * Sonic Triple Trouble (1994)
 * Sonic Blast (1996)
 * Sonic the Hedgehog Pocket Adventure (1999)
 * Sonic Advance (2001)
 * Sonic Advance 2 (2002)
 * Sonic Advance 3 (2004)
 * Sonic Rush (2005)
 * Sonic Rush Adventure (2007)

Spin-offs

 * SegaSonic the Hedgehog (1993)
 * Sonic Spinball (1993)
 * Dr. Robotnik's Mean Bean Machine (1993)
 * Knuckles' Chaotix (1995)
 * Sonic the Fighters (1996)
 * Sonic R (1997)
 * Sonic Shuffle (2000)
 * [instead of the dreaded Shadow game] (2005)
 * Sonic & Sega All-Stars Racing (2010, final game using the 4Kids voice cast)
 * Sonic & All-Stars Racing Transformed (2012)
 * Sonic Mania (2017)
 * /Team Sonic Racing/ (2019)

Handheld

 * Sonic Drift (1994)
 * Tails' Skypatrol (1995)
 * Tails Adventure (1995)
 * Sonic Drift 2 (1995)
 * Sonic Labyrinth (1995)
 * Sonic Pinball Party (2003)
 * Sonic Battle (2003)
 * Sonic Rivals (2006)
 * Sonic Rivals 2 (2007)
 * Sonic Chronicles: The Dark Brotherhood (2008)

Sonic Riders

 * Sonic Riders (2006, first game using the 4Kids voice cast)
 * Sonic Riders: Zero Gravity (2008)
 * Sonic Free Riders (2010, first game using the current voice cast)

Sonic Storybook

 * Sonic and the Secret Rings (2007)
 * Sonic and the Black Knight (2009)