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Sonic the Hedgehog CD (Mega-CD prototype; 1992-12-04)/Comparisons/Salad Plain

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Palmtree Panic, or "Salad Plain" as it appears to be called here, is the only playable Round in this prototype. After the first two Zones, the game ends.

General

SonicCD002 MCD SaladPlain1Start.png
v0.02 prototype
SonicCD MCD PalmtreePanic1Start.png
Final game (Present)
SonicCD MCD PalmtreePanic1GFStart.png
Final game (Good Future)

Moments into the game and the player can see there were big changes. The layout is very different and the graphics for the Present share more in common with the final version's Good Future. There is no title card, meaning the time counter starts striaght away, and Ricky and Flicky can be seen hopping about by default.

SonicCD002 MCD Comparison SP1 Past.png
v0.02 prototype
SonicCD MCD Comparison PP1 Past.png
Final game

The Past is, of course, also very different, sporting a very different palette and sharing most of the same graphics as the Present.

SonicCD002 MCD SaladPlain1GoodFuture.png
v0.02 prototype
SonicCD MCD PalmtreePanic1GFStart.png
Final game

The Good Future, while inaccessible in this prototype, looks very much like the Present with added pipes, and compared to the final, doesn't look that much different apart from the trees and star-shaped plants not being mechanised. The Present was redesigned later on to make the Good Future's graphics more distinct.

SonicCD002 MCD Comparison SP1 BadFuture.png
v0.02 prototype
SonicCD MCD Comparison PP1 BadFuture.png
Final game

And the Bad Future already has much of its graphical assets prepared for it, though the palm trees and star-shaped plants are the same as the Present. These would be changed into rotting mechanical plants, and the pipes would have added flashing lights.

Curiously, these early graphics for the Futures would persist in Zone 3 in the 510 and v0.28A prototypes.

Zone 1

SonicCD002 MCD Comparison SP1 BlueRing.png
v0.02 prototype
SonicCD MCD Comparison PPBlueRingMonitor.png
Final game

The first monitor the player sees in the v0.02 prototype is this blue ring monitor. It grants Sonic the combined effects of Invincibility and Power Sneakers.

SonicCD002 MCD Comparison SP1 DoubleSuperRing.png
v0.02 prototype
SonicCD510 MCD Comparison PPTimeMonitor.png
510 prototype
SonicCD MCD Comparison PPTimeMonitor.png
Final game

Further on, these two Super Ring monitors would see multiple subtype changes over the game's development.

SonicCD002 MCD Comparison SP1 SpinTube.png
v0.02 prototype
SonicCD MCD Comparison PP1 SpinTube.png
Final game

The automatic roll physics in Zone 1's spin tube are different, feeling more like Sonic 1's physics, as Sonic is not immediately propelled upon entering.

SonicCD002 MCD Comparison SP1 BouncyPolePast.png
v0.02 prototype
SonicCD MCD Comparison PP1 BouncyPolePast.png
Final game

Bouncy poles can be found throughout both Zones in all time zones. In the final game, most were replaced with diagonal springs (such as this one) or were removed entirely. Their scarcity (only appearing towards the beginning of non-present versions of Zone 2) and lack of given sound effects mean they're easy to miss in the final game, but are all over the place in this prototype.

A breakable wall would also be added to this section.

SonicCD002 MCD Comparison SP1 HiddenTunnel.png
v0.02 prototype
SonicCD MCD Comparison PP1 HiddenTunnel.png
Final game

This hidden high-speed tunnel is not yet functional in any time zone, and won't be for the next few prototypes.

SonicCD002 MCD Comparison SP1 LogPresent.png
v0.02 prototype
SonicCD MCD Comparison PP1 LogPresent.png
Final game

This hollowed-out log would become much more adorned with floating star-shaped plants later in development...

SonicCD002 MCD Comparison SP1 LogPast.png
v0.02 prototype
SonicCD MCD Comparison PP1 LogPast.png
Final game

...while in the Past, the branches aren't grown out yet.

SonicCD002 MCD Comparison SP1 TurntablePast.png
v0.02 prototype
SonicCD MCD Comparison PP1 TurntablePast.png
Final game

Spinning turntables can be found in the Past where they shouldn't be.

SonicCD002 MCD Comparison SP1 MetalHologram.png
v0.02 prototype
SonicCD MCD Comparison PP1 MetalHologram.png
Final game

There are no Metal Sonic holograms in this prototype yet. Animals, however, are roaming about by default.

SonicCD002 MCD Comparison SP1 TimeMonitor.png
v0.02 prototype
SonicCD MCD Comparison PP1 TimeMonitor.png
Final game

Further on, a "time monitor" can be found. It does nothing, other than temporarily stop rolling palettes and Rings from spinning for a few seconds.

SonicCD002 MCD Comparison SP1 Transporter.png
v0.02 prototype
SonicCD MCD Comparison PP1 Transporter.png
Final game

There are no Robot transporters to be found either, therefore making it impossible to make a Good Future in this prototype.

SonicCD002 MCD Comparison SP1 Amy.png
v0.02 prototype
SonicCD MCD Comparison PP1 Amy.png
Final game

Amy isn't here yet.

Maps

Present

100%
v0.02 prototype
100%
Final game

While some of the core elements of the layout persisted until the final game, big sections were gutted in order to accommodate the "3D loops".

Past

100%
v0.02 prototype
100%
Final game


Good Future

100%
v0.02 prototype
100%
Final game


Bad Future

100%
v0.02 prototype
100%
Final game


Zone 2

SonicCD002 MCD Comparison SP2 BouncyPole.png
v0.02 prototype
SonicCD MCD Comparison PP2 BouncyPole.png
Final game

Bouncy poles can be found in the Present in this prototype. These would be relegated to the Past and Futures later in development.

SonicCD002 MCD Comparison SP2 FloatingPlatform.png
v0.02 prototype
SonicCD MCD Comparison PP2 FloatingPlatform.png
Final game

The floating platforms are shaped differently here. This difference only applies to Zone 2, as the platforms look more like in the final in Zone 1.

SonicCD002 MCD Comparison SP2 SMonitor.png
510 prototype
SonicCD MCD Comparison PP2 SMonitor.png
Final game

These "S" monitors function identically to the blue ring monitors, granting extra speed and invincibility for a short period. A non-working version of this particular monitor appears in the original Sonic the Hedgehog, albeit hidden in the game's code (unless the player uses debug mode, in which sometimes the graphics can be seen).

SonicCD002 MCD Comparison SP2 FuturePlate.png
v0.02 prototype
SonicCD MCD Comparison PP2 FuturePlate.png
Final game

This Time Warp Plate is floating in the air for some strange reason. Also, the diagonal spring to the left of it is an early design.

SonicCD002 MCD Comparison SP2 SwingingPlatform.png
v0.02 prototype
SonicCD MCD Comparison PP2 SwingingPlatform.png
Final game

There is no robot transporter here, and the swinging platforms aren't here yet either.

SonicCD002 MCD Comparison SP2 LogHollow.png
v0.02 prototype
SonicCD MCD Comparison PP2 LogHollow.png
Final game

A few log hollows can be found throughout Zone 2 in all time zones, but they do not have anything inside of them. They were completely taken out later on.

SonicCD002 MCD Comparison SP2 LogBridge.png
v0.02 prototype
SonicCD MCD Comparison PP2 LogBridge.png
Final game

This thin log is not solid in this prototype, and instead has a moving platform behind it. Later in development, it was broken up into two platforms and made solid on top.

SonicCD002 MCD Comparison SP2 SpinTube2.png
v0.02 prototype
SonicCD MCD Comparison PP2 SpinTube2.png
Final game

Some of the spin tubes don't fully function yet, such as this one near the goal, as Sonic won't automatically spin upon entry.

Maps

Present

100%
v0.02 prototype
100%
Final game

Past

100%
v0.02 prototype
100%
Final game


Good Future

100%
v0.02 prototype
100%
Final game


Bad Future

100%
v0.02 prototype
100%
Final game


References


Sonic the Hedgehog CD (Mega-CD prototype; 1992-12-04), prototype version of Sonic the Hedgehog CD
SonicCD002 MCD Title.png

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