Sonic: Always Classic

Sonic: Always Classic is the reimagining of the Sonic the Hedgehog series in an alternate universe where Sonic and Robotnik were always the same.

Changes

 * Sonic and Dr. Robotnik were always kept completely identical to their Classic versions. Also, no western/American redesigns!
 * Mobius is still kept.
 * Dr. Robotnik was never Eggman.
 * The western/American redesigns never happened.
 * Tails wasn't redesigned to his Modern look until Sonic Forces.
 * The ages: Sonic and Tails are 8, Amy was always 6 and Knuckles is still 16.
 * The games are changed.

Game Changes

 * The Sonic 3 redesign was rejected, causing Sonic 3 and Knuckles to be cancelled.
 * The other reason Sonic 3 was cancelled because there was already another Sonic 3, from 1993, which kept the Sonic 2 sprites.

Sonic 1
Released: June 23, 1991

Platform: Mega Drive

Notes:


 * Remastered for the SEGA Mega CD on May 10, 1993, having Tails, the spindash and the PRESS START BUTTON fixed.
 * Remastered again for iOS and Android in 2013, being the same as the SEGA Mega CD port.

Sonic 2
Released: November 24, 1992

Platform: Mega Drive

Notes:


 * Considered the best game ever.
 * Remastered for the SEGA Mega CD on December 2, 1992, having bug fixes.
 * Remastered again for iOS and Android in 2013.

Sonic and Tails
Released: December 28, 1992

Platform: Master System/Game Gear

Sonic CD
Released: September 23, 1993

Platform: Mega CD

Notes:


 * Spawned the infamous Majin Sonic trend, shown in the infamous Fun is infinite easter egg.
 * Remastered for iOS and Android in 2011, having Tails, changeable soundtrack and the spindash from Sonic 2.
 * If you stand there waiting for 3 minutes without moving, Sonic will say "I'm outta here!" and jump off the screen, resulting in an instant Game Over.

Sonic 3
Released: November 3, 1993

Platform: Mega CD

Notes:


 * There is also a cancelled one for the SEGA Mega Drive.