▲
3
▼
Sonic the Hedgehog 4 was originally going to be a mobile exclusive game under the title "Sonic the Portable" before being made into a cross platform game marketed as a sequel to the classic trilogy on the Genesis. This name remains left in the game in Carnival Street Zone where it is displayed on the ferris wheel in the level background on a blurred out neon sign.
▲
1
▼
For a week in the leadup to Sonic the Hedgehog 4: Episode I's gameplay and title reveal, Sega posted a daily countdown showing a lineup of Sonic's friends' names, eliminating a set each week before landing on just Sonic. This was in response to a high demand from Sonic fans at the time for a game centered on just Sonic and Dr. Eggman without any of Sonic's allies assisting him nor any greater villains superseding Eggman.
subdirectory_arrow_right Sonic the Hedgehog 4: Episode II (Game)
▲
1
▼
In March 2012, producer Takashi Iizuka was asked on a interview if there was going to be an Episode III. He said:
In January 2015, Ken Balough said in a Facebook reply that they were plans for Sonic the Hedgehog 4: Episode III, but for reasons "that can't be discussed", it was scrapped.
"We are looking forward to hearing the feedback from the users for Episode 2, but we are currently not planning to release another episode. We just want to see how the users accept this episode."
In January 2015, Ken Balough said in a Facebook reply that they were plans for Sonic the Hedgehog 4: Episode III, but for reasons "that can't be discussed", it was scrapped.
▲
1
▼
The first part of the boss battle theme from Episode 1 is actually an unused boss battle theme from a beta of Sonic 3D Blast.
▲
1
▼
During development, the game was code-named "Project Needlemouse", which comes from the prototype name for Sonic, Mr. Needlemouse.
Related Games
Sonic Lost World
Sonic the Hedgehog: Triple Trouble
Sonic the Hedgehog
Sonic Lost World
Sonic CD
Sonic Unleashed
Sonic the Hedgehog Pocket Adventure
Sonic Heroes
Sonic the Hedgehog 3
Sonic Generations
Sonic Colors
Sonic the Hedgehog 2
Sonic X-treme
Sonic the Hedgehog: Spinball
Sonic Origins
Sonic the Hedgehog's Gameworld
Sonic Generations
Sonic Blast
Sonic the Hedgehog
Sonic the Hedgehog Chaos
Sonic & Knuckles
Sonic Unleashed
Sonic the Hedgehog
Sonic Frontiers
Knuckles' Chaotix
Sonic 3D Blast
Sonic the Hedgehog 2
Sonic Chronicles: The Dark Brotherhood
Sonic Colors
Sonic Mania
Sonic the Hedgehog 4: Episode II
Sonic R
Super Smash Bros. Brawl
Sega Heroes
Mario & Sonic at the Rio 2016 Olympic Games
Knuckles Baseball
Sonic Labyrinth
Sonic Shuffle
Sonic's Ultimate Genesis Collection
Sonic Pinball Party
Sonic Jam
Mario & Sonic at the Olympic Games Tokyo 2020
Sonic Adventure
Sonic Mega Collection
Super Smash Bros. for Wii U
Sonic Skateboard
Sonic X Shadow Generations
Sonic Dream Team
Sonic Riders
Dr. Robotnik's Mean Bean Machine