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Sonic the Hedgehog 2 (Simon Wai prototype)/Comparisons/Green Hill Zone

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Emerald Hill Zone (called Green Hill Zone in this prototype) is the fourth and final level that can be accessed through normal play, though this is to be expected as it also exists in the earlier Nick Arcade prototype. While perfectly playable in the older build, elements of the stage have been refined, and would continue to be until release.

Act 1

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Simon Wai prototype
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Final game

The snail enemies still exist in this build, although at least in debug mode they can't kill you this time.

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Simon Wai prototype
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Final game

There are a few tunnels leading to dead ends in this build. In the final, for example, this tunnel leads you to a 1-up within a waterfall, whereas here it goes nowhere.

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Simon Wai prototype
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Final game

Overall act 1 is virtually the same as the final game, just with extra items and rings added on the upper levels and an extra floating platform.

Act 2

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Simon Wai prototype
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Final game

Another blocked tunnel. You can only get this shield by using debug mode.

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Simon Wai prototype
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Final game

Eggman arrives by decending onto his buggy, much like the Nick Arcade prototype.

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Simon Wai prototype
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Final game

But defeat him this time and there are no explosions or sound effects. The wheels just roll away, while an emotionless Eggman takes to the skies.

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Simon Wai prototype
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Final game

Once Eggman is beaten, the game resets, except this time it shows the Sega screen (which is identical to the version in Sonic 1). Boot up the game normally and this part is skipped.

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Final game

Act 2 is also very similar to the final, save for additions on the upper levels.

2-Player mode

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Simon Wai prototype
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Final game

Eggman spawns in 2-player mode, however unlike the Nick Arcade prototype, he's not not a garbled mess.

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Simon Wai prototype
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Final game

He does, however, have the habit of turning into a lone wheel, meaning he can't be defeated.

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Simon Wai prototype
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Final game

Leave the game alone on the title screen, and Green Hill Zone in 2-player mode appears as the second part of the rolling demo. However, despite the different level layout, Sonic and Tails still behave as they did in the Nick Arcade prototype, leading to unflattering results. After jumping around aimlessly for a bit, Sonic hits a set of spikes, loses the pair's rings, and Tails is killed by a snail enemy. Tails then awkwardly spawns further along the level, neatly drawing attention to various unaddressed bugs in the game.

References


Sonic the Hedgehog 2 (Simon Wai prototype), prerelease version of Sonic the Hedgehog 2 (16-bit)
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