Baby Sonic Baby Sonic in the Show Aventures Ofsonic the Hedgehog

This article is a work in progress.
...Well, all the articles here are, in a way. Merely this one moreso, and the article may contain incomplete data and editor'south notes.
Notes: Subpages could utilise some more documentation.

To do:
Motility stuff that'due south nowadays in the recently-dumped prototype to the respective page.

This page details prerelease information and/or media for Sonic the Hedgehog (Genesis).

In order to compete with Nintendo's acknowledged NES console, Sega wanted to created a new mascot in the aforementioned vein equally Mario from Super Mario Bros. which would be created into a video game in time for the release of the and then-forthcoming Sega Genesis console. Much of the development time was spent trying to figure out what the mascot would be like in gild to take a wide appeal, where several ideas were considered earlier being scrapped entirely or put into newer games.

Sonic the Hedgehog managed to become one of gaming'due south popular culture icons in the 90s after the initial release of the game, which also helped Sega to set up a rivalry with Nintendo at the time.

one Subpages
- 1.1 Concept Art
- one.two Builds
2 Full general Differences
- 2.i Sonic
- 2.2 Title Screen/Level Select
- ii.3 Other
- 2.iv Sega Music Collection
  - 2.four.1 [4:26] "BGM1" (Greenish Hill Zone)
  - two.4.2 [5:31] "BGM2" (Special Stage)
  - two.4.3 [half dozen:26] "BGM3" (Sparkling Zone)
3 Zone Differences
- 3.one Green Hill Zone
- 3.2 Marble Zone
- 3.three Spring Yard/Sparkling Zone
- 3.4 Labyrinth Zone
- 3.5 Star Lite Zone
- 3.6 Bit Encephalon/Clock Piece of work Zone
- 3.7 Special Stages

Subpages

Concept Art

Builds

February 1990
Japanese news footage of Sega R&D that includes a brief glimpse of an extremely-early Sonic i.

1990 Tokyo Toy Show
The famous demo build, and the game's public debut - sadly, now presumed lost.

Pre-WCES Build
Considerably more fleshed out than the TTS build, merely still a typical early build.

WCES-similar Builds
Small refinements relative to the previous build, though even so far from complete.

Sonic1prerelease lateringicon.png

GPSG Build
Dark-green Loma'due south sunflowers now take green centers instead of pink ones, plus another changes from earlier builds.

Usa Manual Build
Almost everything has been finalized at this betoken, but a few differences remain.

Game PV Footage
Despite this build being very close to the U.s. release, it retains leftovers from before late builds.

General Differences

Sonic

Prerelease	Epitome

During much of the game'southward development, Sonic could not run off the screen at the end of an Act (similarly, simply not identically, to how the eight-bit versions conduct). Instead, Sonic would fist-pump the air if the player jumped afterwards clearing the signpost. The animation was yet present as late as the Shinsaku Soft Video build, and the relevant sprites are still in the final game.

Championship Screen/Level Select

Tokyo Toy Show	Early Prerelease	Later Prerelease

Image	Concluding

The championship screen of the build shown at the Tokyo Toy Testify has a smaller imprint (and "SONIC" text). (Interestingly, this title screen heavily resembles the one from the 8-bit versions.) Since the title screen shares the same art/palettes as Green Hill, it used to accept the differently detailed background in early on pre-release materials earlier it got adjusted to resemble the last's background not besides long afterwards.

Early on Prerelease	Afterward Prerelease

Prototype	Concluding

The stage select once used a blue-gray palette instead of a sepia-tone i. Afterward on, the palette got changed to the final's sepia-tone experience. Some acts take Xs listed subsequently them (possibly to mark if they were incomplete), and Concluding Zone is missing from the list. Information technology's possible that Scrap Brain/Clock Piece of work Deed 3 had the dominate fight in it, like to the other Acts. The stage select text is positioned upward, also, possibly because of the lack of slots like Last Zone.

Other

Many prerelease pictures of Sonic the Hedgehog have the HUD display the Band counter equally "RING" instead of "RINGS".

Prerelease	Paradigm	Final

The championship cards had a minor add-on in the prerelease photos: a small period can be seen subsequently the word "Act".

A couple of prerelease screenshots show an early on version of debug style, where numbers indicating Sonic'southward position are shown at the bottom of the screen (and replace the lives counter).

In addition, BallHogs originally faced the screen and walked similarly to Crabmeat.

Sega Music Drove

3 alternating versions of Sonic tracks appeared as part of Sega Music Collection, a collection of BGMs from several Mega Drive titles which was distributed digitally in Nihon via the Sega Game Toshokan dial-up service.

As heard in this videotape recording of a user's online session with the service, this version of Dark-green Hill Zone's BGM matches the recording of the Tokyo Toy Show '90 demo music, and all three tracks lucifer the BGM for the Tera Bulldoze store demo.

All three tracks have noticeable differences compared to the final game's BGM.

[4:26] "BGM1" (Green Loma Zone)

Much faster tempo.
Missing the descending arpeggio in the intro, and the synth chords.
The overall system is a fleck barren compared to the terminal BGM.

[5:31] "BGM2" (Special Stage)

Slower tempo.
The tune line is played by two detuned FM voices at the same midrange octave, resulting in a mellower sound. (The concluding version's tune transposes FM channel #6 up one octave, to play intervals.)

[half-dozen:26] "BGM3" (Sparkling Zone)

Slightly slower tempo.
Livelier kick drum programming.
No noise aqueduct imitating a shuffle how-do-you-do-hat.

In addition, both tracks with PCM drums ("BGM1" and "BGM3") have the original boot and snare tuning as heard in the TTS 'xc demo, the Tera Drive store demo, and the Sega Shinsaku Soft Video build.

Zone Differences

Greenish Hill Zone

Prerelease	Prototype	Final

A big boulder was planned to take been at the get-go of Green Colina Zone, which would have chased after Sonic (more info in the Videos department). While the boulder was removed from the terminal game, the idle sprite was kept and used as role of Physician Robotnik'south Egg Mobile Hammer Ball-shiyo. In addition, the boulder can be selected using debug mode, although it can't be placed. In the game's mobile release, while the boulder however goes unused, it actually can be placed in debug fashion, and behaves faithfully to the original idea. It can besides be placed similar this in Sonic Mania's Green Hill Zone.

Prerelease	Image	Final

The background for Green Hill used to have front end mount tiles that were detailed in a similar fashion to the back mountains in early on pre-release materials. This was inverse subsequently in development and later pre-release materials to resemble the final version'southward background.

Prerelease	Prototype	Last

The sunflowers seen in Green Hill were planned to be purple but were changed to green in the concluding game. They nevertheless employ their original palette in the game'southward ending, withal.

Prerelease	Prototype	Final

In Green Hill Zone Act ii, in the place where you break through a wall to get 3 Monitors, the Shield Monitor was originally going to exist an Extra Life Monitor.

(Source: Raze Great britain Issue 12)

Prerelease	Prototype	Final

Robotnik originally didn't express mirth when he dropped the checky ball or hit the player. Information technology seems similar he lacked the laughing animation at this signal of development.

Marble Zone

This well-circulated image depicts a version of Marble Zone not seen in whatsoever other prerelease coverage, with flipping platforms, a more than segmented footing, chunkier lava, and larger ruins.

Based on the improbable camera position and lack of HUD, this "screenshot" is probably a mockup––at the fourth dimension, a typical method for publishers to release compelling images of games even so in early development.

An alternate scan of the above.

Early Prerelease	Later Prerelease

Image	Final

In many prerelease screenshots, and in the groundwork of a scene in the flick Wayne's World, UFOs are seen spinning in the sky in Marble Zone. Being red early on, they were changed to a green and blue expect until they were removed from the game in the final version. In the Sonic 1 2013 Port, they were added in debug mode and function flawlessly. In Sonic Mania, similar graphics were used for the lampposts in Studiopolis Zone.

The first iii rings in human activity 1 are also absent and replaced with a Buzz Bomber and a Yadrin badnik.

Prerelease	Epitome	Last

Spikes was also planned to be in the zone in place of Caterkiller and can exist still be spawned with debug manner in the final game. In addition, this surface area'due south moving platform was changed.

Prerelease	Prototype	Final

In this screenshot, the background is positioned college upwards and lacks rings. The lava has a less polished appearance, likewise.

Image	Prerelease	Final

This screenshot shows of Deed 2 with a monitor earlier the lava flow. This monitor is not there in the final game.

Prerelease	Prototype	Terminal

An early screenshot of the stop of Marble Human action 1 shows an unused, sideways variant of the "spike chandelier". It was replaced in the final game with the moving dark-green blocks seen throughout the level. The object itself wasn't removed, withal, and volition properly work if placed back into the Zone using a level editor. The used fasten chandelier was fabricated smaller for the final game, and flames were added to the torch in the background.

Prerelease	Prototype	Final

This screenshot of Marble Human action 3 shows a broken blitheness of the burn from the torch in the background. Annotation that the animal that appears in this zone in the last is not Picky, the pig rather, its Ricky the squirrel. This was perhaps due to the zone order beingness rearranged.

Spring Yard/Sparkling Zone

Prerelease	Prototype	Final

Early in development, Spring Yard Zone had a completely dissimilar look and was chosen Sparkling Zone. The foreground was the same and was left relatively unchanged, merely the background showed a large metropolis with flashing lights and signs. In addition, the pillars seen throughout the level were originally colored both purple and bluish.

Earlier Prerelease	Prototype

Later Prerelease	Concluding

This area nigh the starting point in Deed one once had spiked balls spinning around the bumper, presumably removed due to making the function too difficult. Interestingly, this obstacle was kept when Sparkling Zone was changed into Leap Yard Zone (although the length of the spiked balls was changed from vi to v), possibly considering the level lodge wasn't changed yet, which ways that the difficulty in the zones had not been tweaked all the same.

Prerelease	Prototype	Final

In this shot, the sparkles can exist seen in the background, besides as the lack of some rings.

Prerelease	Prototype	Final

Spring Yard's slopes originally weren't blocked by a leap as seen here.

Labyrinth Zone

Prerelease	Paradigm	Final

All of the known pre-release photos of Labyrinth Zone show it in a very early state, seemingly a lack of objects and water. Although it appears as though in that location's no groundwork to this phase, other screenshots from the same source betoken that information technology did have a groundwork. All the same, it doesn't seem to loop well and is only visible from certain parts of the stage.

Prerelease	Prototype	Final

Other early screenshots of the level reveal the aforementioned background, with a rocky design. Earlier versions of Labyrinth Zone also included smaller versions of the crystals seen in the final game.

viii-Flake	Proto 16-Bit	Concluding 16-Bit

Interestingly, these smaller versions of the crystals are very similar to the ones that appear in the 8-chip versions of Sonic 1. The proto design would afterwards be used as a module for the bigger, more circuitous structures plant in the final game.

Star Light Zone

Prerelease	Prototype

Star Lite Zone had a less blocky advent and used its truss tiles more than often, which gave it a more "nether construction" look. The expanse containing iv monitors at the get-go of Act ane had two pits and a breaking platform at some point in development.

Prerelease	Prototype	Last

Human action 2 had a very different (and less empty) starting area.

Later Prerelease	Concluding

The row of springs in Act iii originally had a second row facing downwardly.

Chip Brain/Clock Work Zone

Prerelease	Epitome	Final

Scrap Encephalon Zone was originally called Clock Work Zone... or Clock ork Zone, since the title card font doesn't contain the letter W. The beginning rows of rings are not present. Too the background and foreground shared the same colors.

Prerelease	Prototype

Diagonal conveyor belts were once used in Scrap Brain, but were removed and well-nigh probable replaced with the spinning platform conveyors.

Chunk $ten	Epitome

Human action 1 Final	Act 2 Final	Act 3 Final

Scrap Brain Zone used Act 2's layout as its background. It wrapped in both directions but didn't appear to roll. The terminal game uses completely different art for each act.

Prerelease	Prototype	Final

The tunnels with the large beams that move back and forth were originally zig-zagged.

Special Stages

Early Prerelease	Later Prerelease	Prototype

Every prerelease screenshot of the Special Stages shows a layout that does not appear in the final game. The primeval screenshots have information technology entirely made out of gold blocks, with no rings whatsoever. Nigh of this early on layout would exist shown off in the Soft Video footage.

The image on the correct is a map from the prototype.

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Source: https://tcrf.net/Prerelease:Sonic_the_Hedgehog_(Genesis)