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Sonic the Hedgehog 2 (Nick Arcade prototype)/Comparisons/Green Hill Zone

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The Nick Arcade prototype of Sonic 2 provides clear evidence that it was built off of Sonic 1... because it includes the original game's first stage!

It is believed this might have been a very early test stage, as while the team went to the trouble of converting the 256x256 level titles to 128x128 (which the rest of Sonic 2 uses), the stage isn't in good health in this prototype.

Act 1

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 1.png
Sonic the Hedgehog

Welcome to Green Hill Zone! However this isn't as cool as it looks, as you can probably tell from the garbled lives icon and HUD. Just try walking!

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 2.png
Sonic the Hedgehog

The collision data in this level is significantly damaged, enough to make walking very difficult indeed. However, you can jump and run to get around it to an extent.

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Sonic 2 Nick Arcade prototype
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Sonic the Hedgehog

The Super Ring monitor has become a shield. In fact, all of the monitors are different, owing to changes to how the objects are stored betweem the two games.

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Sonic 2 Nick Arcade prototype
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Sonic the Hedgehog


Act 2

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 3.png
Sonic the Hedgehog

Act 2 seems a lot more solid than Act 1.

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 4.png
Sonic the Hedgehog

The Chopper badnik appears to be the most intact Sonic 1 enemy.

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 5.png
Sonic the Hedgehog

The Sonic 1 push-against-rock and jump bug still exists!

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 6.png
Sonic the Hedgehog

Eggman monitor! The aforementioned object changes cause this to appear, however, it does nothing.

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 7.png
Sonic the Hedgehog

Unused tiles in Sonic 1 seem to have manifested themselves onto the mapping of the Crabmeat badnik.

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 8.png
Sonic the Hedgehog

The Sonic 1up has become a Tails 1up monitor. Something to note for later.

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 9.png
Sonic the Hedgehog

And we complete the zone.

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Sonic 2 Nick Arcade prototype
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Sonic the Hedgehog


Act 3

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 10.png
Sonic the Hedgehog

Thanks to mapping changes, instead of an invincibility box in the tree, we get Power Sneakers.

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 11.png
Sonic the Hedgehog

Now onto the fun part, the boss!

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Sonic 2 Nick Arcade prototype
Ghzboss.png
Sonic the Hedgehog

Fighting against "garbleotnik" with Tails is a very weird experience.

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 13.png
Sonic the Hedgehog

Eggman explodes, which is more than can be said for the later Simon Wai prototype.

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 14.png
Sonic the Hedgehog

Even a garbled egg capsule is included!

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Sonic 2 Nick Arcade prototype
Sonic1 GHZ NickArcadeComparison 15.png
Sonic the Hedgehog

Free the flickies! I'm sure they're glad to escape this broken zone...

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Sonic 2 Nick Arcade prototype
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Sonic the Hedgehog


References


Sonic the Hedgehog 2 (16-bit)
Sonic2 title.png

Main page (KiS2|2013|3D|Ages)
Comparisons (KiS2) (2013)
Maps (KiS2) (2013)
Achievements
Credits


Manuals
Promotional material
Magazine articles
Video coverage
Reception
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Development
Hidden content (KiS2) (2013)
Bugs (KiS2) (2013)
Region coding
Hacking guide
Bootlegs