Difference between revisions of "Sonic the Hedgehog CD (Mega-CD prototype; 1992-12-04)/Comparisons"

Revision as of 15:38, 27 October 2019

Back to: Sonic the Hedgehog CD (Mega-CD prototype; 1992-12-04).

General comparisons

v0.02 prototype

Final game

The v0.02 prototype has a Sega screen, complete with the classic jingle. This was removed from the final, likely as the Mega-CD BIOS already does the work in this regard.

v0.02 prototype
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Final game

The title screen was overhauled for the final game. In the v0.02 prototype, "CD Sonic the Hedgehog" uses a 320x224 screen resolution (versus 256x224) and lacks the scaling cloud effects. There is also no introductory animation, just a simple fade in.

In this prototype, the entirety of Sonic - You Can Do Anything plays on the title screen rather than a dedicated title screen theme. The game does not transition to the opening animation until the song has finished playing. A text string can also be seen in the bottom-right corner showing who provided the vocals, likely for press purposes.

v0.02 prototype

Final game

The animated introduction has a different border, with the text "開発画面" (Kaihatsu Gamen, which literally translates to "development screen"). It also runs slower than the final game.

v0.02 prototype

Final game

The Time Attack screen is a very early design compared to later prototypes and the final game, with extremely basic graphics. Only Palmtree Panic Zones 1 and 2 can be selected here, and the Round is referred to as "Salad Plain". The music that plays on this screen is the theme for Collision Chaos instead of the actual Time Attack music.

The scrapped R2 is also listed on this screen. All other known versions of the game skip from R1 (Palmtree Panic) directly to R3 (Collision Chaos).

v0.02 prototype

510 prototype-v0.70 prototype

Final game

The level select screen is very barebones, listing only the first two Zones of Palmtree Panic and the time warp, opening animation and "Comin' Soon" screen. Its appearance is much like those seen in later prototypes.

There is no cheat code to access the level select in this prototype. To access it, byte 0xA1A in track 1 must be changed to "01 1A".

Gameplay comparisons

v0.02 prototype

Final game

You Say! A likely pun on Yuusei Sega World, signposts do not spin nor make a noise when Sonic passes past them, but the computer does force him to travel right. There is no score tally.

v0.02 prototype

Final game

Time travel looks very different to the final game. It also plays an ear-grating noise that would be used in the 510 and 512 prototypes before being changed twice over the game's development.

Graphics comparisons

Sonic the Hedgehog

Sonic CD v0.02 prototype

Sonic CD final

Sonic uses spring animations similar to the original Sonic the Hedgehog rather than the "spinning" ones seen in the final Sonic CD. They even corrected the missing white stripe from the original sprite.

v0.02 prototype

Final game

The "I'm outta here" Easter egg uses completely different graphics.

Level comparisons

Salad Plain

References

Sonic the Hedgehog CD (Mega-CD prototype; 1992-12-04), prototype version of Sonic the Hedgehog CD
	Main page \| Comparisons \| Maps \| Hidden content \| Technical information Part of Sonic the Hedgehog CD development

@@ Line 14: / Line 14: @@
 | game2=Final game
 | desc=The title screen was overhauled for the final game. In the v0.02 prototype, "''CD Sonic the Hedgehog''" uses a 320x224 screen resolution (versus 256x224) and lacks the scaling cloud effects. There is also no introductory animation, just a simple fade in.
+In this prototype, the entirety of [[Sonic - You Can Do Anything]] plays on the title screen rather than a dedicated title screen theme. The game does not transition to the opening animation until the song has finished playing. A text string can also be seen in the bottom-right corner showing who provided the vocals, likely for press purposes.
 }}
 {{Comparison
@@ Line 27: / Line 29: @@
 | game1=v0.02 prototype
 | game2=Final game
-| desc=The Time Attack screen is a very early design compared to later prototypes and the final game, with extremely basic graphics. Only [[Palmtree Panic]] Zones 1 and 2 can be selected here, and the Round is referred to as "Salad Plain".
+| desc=The Time Attack screen is a very early design compared to later prototypes and the final game, with extremely basic graphics. Only [[Palmtree Panic]] Zones 1 and 2 can be selected here, and the Round is referred to as "Salad Plain". The music that plays on this screen is the theme for [[Collision Chaos]] instead of the actual Time Attack music.
+The scrapped [[R2]] is also listed on this screen. All other known versions of the game skip from R1 (Palmtree Panic) directly to R3 (Collision Chaos).
+}}
+{{Comparison
+| image1=SonicCD002 MCD LevelSelect.png
+| image2=Scd510 level select.png
+| image3=StageSelectSonicCDFinal.png
+| game1=v0.02 prototype
+| game2=510 prototype-v0.70 prototype
+| game3=Final game
+| desc=The level select screen is very barebones, listing only the first two Zones of Palmtree Panic and the time warp, opening animation and "Comin' Soon" screen. Its appearance is much like those seen in later prototypes.
-The scrapped [[R2]] is also listed on this screen. All other known versions of the game skip from R1 (Palmtree Panic) directly to R3 ([[Collision Chaos]]).
+There is no cheat code to access the level select in this prototype. To access it, byte 0xA1A in track 1 must be changed to "01 1A".
 }}