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Sonic the Hedgehog Mobile

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Title Screen

Sonic the Hedgehog Mobile

Also known as: Sonic the Hedgehog Part 1, Sonic the Hedgehog Part 2 (IFone; US/EU), Sonic the Hedgehog (JP)
Based on: Sonic the Hedgehog (Genesis)
Developers: Sonic Team (I-Mode), iFone (US/EU J2ME Port)
Publishers: Sega (JP), Sega Mobile (US/EU)
Platforms: J2ME (US/EU), I-Mode (JP)
Released in JP: December 5, 2005 (Sonic Cafe)
Released in US: December 20, 2005
Released in EU: February 14, 2006

GraphicsIcon.png This game has unused graphics.
DebugIcon.png This game has debugging material.
RegionIcon.png This game has regional differences.
Carts.png This game has revisional differences.

So very stubbly.
This page is rather stubbly and could use some expansion.
Are you a bad enough dude to rescue this article?

Sonic 1 on a mobile phone before the iPhone port. Originally released through the Japan-only Sonic Cafe service (for I-Mode devices) and later given an inferior port to J2ME which was then provided as one full game or in two parts depending on the carrier.

It seems this version served as the basis for the Game Boy Advance port, Sonic the Hedgehog Genesis, which is generally considered to be the worst port of Sonic 1.

Hmmm...
To do:

Unused Graphics

StHmobile-UFO.png

This UFO was used in the Genesis original's prototype build in Marble Zone while the final build deleted the sprite. So why is it here...?

(Source: Sonic Retro)

StHmobile-specialstage.png

StHmobile-specialstagering.png

Leftover graphics from the removed Special Stage remain in the data.

Cheat Menu

Cheat menu of Part 1. Cheat menu of Part 2 and the Japanese release.

At the title screen, press 2, 3, 0, 6, 9, 1 (23/06/91, the US/European release date of the original game) to unlock the cheat menu.

  • INVINCIBILITY - Makes you invincible.
  • UNLOCK LEVELS (Part 1 only) - Allows you to play all of the levels from Part 1 and Part 2. This option doesn't exist in the Japanese release, as it wasn't released as two separate games in Japan.
  • AMPHIBIOUS (Part 2 and Japanese release only) - Makes it impossible to drown.
  • EMERALDS - Allows you to set the amount of Chaos Emeralds you have.
  • FPS - Shows the current number of frames-per-second in the upper-left corner of the screen.
  • COORDS - Shows Sonic's coordinates in the upper-right corner of the screen.
  • CAMERA - Lets Sonic move in all directions without falling. Use # to toggle it mid-level.

Revisional Differences

There was a second release of the game for Verizon phones that strangely removed all of the sound effects.

(Source: Sonic Retro)
The Sonic the Hedgehog series
Sega GenesisSonic the Hedgehog (Prototype) • Sonic the Hedgehog 2 (Prototypes) • Sonic the Hedgehog 3 (Prototype) • Sonic & Knuckles (Prototypes) • Sonic 3 & Knuckles • Sonic 3D Blast (Prototypes) • Sonic Spinball (Prototype)
Dr. Robotnik's Mean Bean Machine (Prototype) • Sonic Classics
Sega Master SystemSonic the Hedgehog • Sonic the Hedgehog 2 • Sonic Chaos (Prototypes) • Sonic Blast • Sonic Spinball
Dr. Robotnik's Mean Bean Machine • Sonic's Edusoft
Game GearSonic the Hedgehog (Prototype) • Sonic the Hedgehog 2 (Prototype) • Sonic Chaos (Prototypes) • Sonic Triple Trouble (Prototypes)
Sonic Spinball (Prototype) • Sonic Drift 2 • Sonic Labyrinth • Sonic Blast (Prototypes)
Dr. Robotnik's Mean Bean Machine • Tails' Skypatrol • Tails Adventures
ArcadeSegaSonic Cosmo Fighter • SegaSonic the Hedgehog (Prototype) • Sonic Championship • SegaSonic Bros.
Sega CDSonic the Hedgehog CD (Prototypes‎)
32XKnuckles' Chaotix (Prototypes)
Sega PicoSonic the Hedgehog's Gameworld • Tails and the Music Maker (Prototypes)
WindowsSonic the Hedgehog CD (1996, 2011) • Sonic's Schoolhouse • Sonic & Knuckles Collection • Sonic 3D Blast • Sonic R
Sonic Heroes • Sonic Riders • Sonic Adventure DX: Director's Cut (2004, Demo, 2011) • Sonic Adventure 2
Sonic the Hedgehog 4 - Episode I (Prototypes) • Sonic the Hedgehog 4 - Episode II (Prototype) • Sonic Generations (Demos) • Sonic Lost World • Sonic Mania • Sonic Forces • Sonic & Sega All-Stars Racing • Sonic & All-Stars Racing Transformed • Team Sonic Racing
Sega SaturnSonic X-treme • Sonic 3D Blast (Prototype) • Sonic Jam (Prototype) • Sonic R (Preview)
Game.comSonic Jam
DreamcastSonic Adventure (Prototypes) • Sonic Adventure 2 (Prototypes) • Sonic Shuffle (Debug Version)
Neo Geo Pocket ColorSonic the Hedgehog Pocket Adventure (Prototypes)
Game Boy AdvanceSonic Advance (Prototype) • Sonic Advance 2 • Sonic Advance 3 (Prototype) • Sonic Battle • Sonic the Hedgehog Genesis
GameCubeSonic Adventure 2: Battle (Demo) • Sonic Adventure DX: Director's Cut (Prototypes) • Sonic Heroes (Prototypes)
Shadow the Hedgehog • Sonic Mega Collection (Prototype) • Sonic Gems Collection • Sonic Riders
PlayStation 2Sonic Heroes • Shadow the Hedgehog • Sonic Riders • Sonic Riders: Zero Gravity • Sonic Unleashed • Sonic Gems Collection
XboxSonic Heroes • Shadow the Hedgehog • Sonic Riders
Nintendo DSSonic Rush (Demo) • Mario & Sonic at the Olympic Games (Beijing 2008) • Sonic Chronicles: The Dark Brotherhood
Sonic & SEGA All-Stars Racing • Sonic Classic Collection
PlayStation PortableSonic Rivals
Xbox 360Sonic the Hedgehog (Demo) • Sonic Unleashed (Preview) • Sonic & Sega All-Stars Racing • Sonic the Hedgehog 4 - Episode I (Prototypes) • Sonic Generations (Demos) • Sonic Adventure 2 • Sonic & All-Stars Racing Transformed
WiiSonic Unleashed • Sonic Colors • Mario & Sonic at the Olympic Games (Beijing 2008, London 2012) • Sonic the Hedgehog 4 - Episode I (Prototypes) • Sonic & Sega All-Stars Racing • Sonic and the Black Knight • Sonic Riders: Zero Gravity
PlayStation 3Sonic the Hedgehog • Sonic the Hedgehog 4 - Episode I (Prototypes) • Sonic Adventure 2 • Sonic Generations (Demos) • Sonic & All-Stars Racing Transformed
Nintendo 3DSSonic Generations • Mario & Sonic at the Olympic Games (London 2012) • Sonic & All-Stars Racing Transformed
Wii USonic Lost World • Sonic Boom: Rise of Lyric • Sonic & All-Stars Racing Transformed • Mario & Sonic at the Olympic Games (Rio 2016)
Nintendo Switch, PlayStation 4, Xbox OneSonic Mania
J2MESonic the Hedgehog Mobile • Sonic Jump
LeapFrog SystemsSonic X • Sonic the Hedgehog
N-GageSonic N
iOS, AndroidSonic the Hedgehog 4 - Episode I (Prototypes) • Sonic the Hedgehog • Sonic the Hedgehog 2 • Sonic the Hedgehog CD
Sonic Jump • Sonic Dash • Sonic Runners  • Sonic Runners Adventure (Prototype)
Plug & PlaySuper Sonic Gold
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