Chemical Plant Zone
From Sonic Retro
(Redirected from Chemical Plant)
|
Sonic the Hedgehog 2 (16-bit) |
| Levels |
| Chemical Plant Zone |
| Chemical Plant Zone |
|---|
| Second Zone, Sonic the Hedgehog 2 (16-bit) |
| Number of Acts: 2 |
| Location: West Side Island |
| Level theme: industrial |
| Boss: Water Eggman |
| Maximum rings, Act 1: 195 + 130 |
| Maximum rings, Act 2: 157 + 140 |
| Underwater areas: Act 2 |
| Non-English names: |
| ← Emerald Hill Zone | Aquatic Ruin Zone → |
- For the Sonic Generations version of this stage, see Chemical Plant (Sonic Generations). For the Sonic Mania version, see Chemical Plant Zone (Sonic Mania). For the Sonic Forces version, see Chemical Plant (Sonic Forces).
Chemical Plant Zone is the second Zone of Sonic the Hedgehog 2. Like what Green Hill Zone is to the first game, Chemical Plant would become known as the signature level of Sonic 2 and see reappearances in games like Sonic Generations, Sonic Mania, Sonic Forces and Sonic Frontiers. The zone's graphics were created by Yasushi Yamaguchi.[6]
Overview
Set in Dr. Eggman's chemical plant, this zone is a token industrial cityscape with a network of pipes that pump blue chemicals that serve as the zone's many twisting pathways, and numerous loops for extra speed, along with the first-ever appearance of the infamous Speed Boosters, which would see much more frequent use in modern titles. The zone also features high-speed transport tubes that will take the player from one part of the zone to another location, harmful blue chemical globs that jump up and down between two points, and floating platforms to ride on. According to Yamaguchi, he originally wanted the zone's background to resemble a factory, but went with a cityscape instead to suit the Sonic series' art direction better.[6]
The second act's bottom sections are filled with a purple liquid known as Mega Mack. While it doesn't pose a great threat at first, the water level will rise when the player reaches a shaft full of moving yellow blocks. The player must quickly climb up to avoid drowning. It is possible to avoid this section entirely by taking the right path through the act. The boss at the end is Water Eggman.
In the original Mega Drive release of Sonic 2, the zone had numerous segments with glitched collision. According to Yamaguchi, this was due to the zone's high-speed nature, as Sonic can surpass the terrain's collision detection at high enough speeds.[6] Many rereleases of the game have since fixed these issues.
The zone shares tiles with Death Egg Zone, as time constraints prevented the developers from creating unique Death Egg graphics.[6]
Quotes
| “ | Dr. Eggman’s chemical factory. Run around inside the pipes that are stretched around all over the place! Aim for the goal by dodging turntables and blowing chemicals. |
„ |
| — Sonic the Hedgehog 2 JP manual[1] (translation by Vertekins)[7] | ||
| “ | Flash through a high-tech maze built with pipes and ducts. Robotnik's flooded the factory with a pool of toxic liquid called "Mega Mack" that poisons Sonic in a few moments! | „ |
| — Sonic the Hedgehog 2 US manual[8] | ||
| “ | At first this stage was set to appear about after Zone 10. Although there would be fewer Acts this time, we thought having about 18 zones would be good, but having each zone stand out and fit in the story in a way that was easy to follow, in the end it dropped down to 11 zones, and Chemical Plant was placed as the second stage. In the end, it was a success (laughs). | „ |
Enemies
Grabber — Spider Badnik, hangs from the ceiling and grabs Sonic. Then unless the player mashes  and  , or Tails can destroy the Grabber, it explodes and hurts/kills Sonic.
| |
| Spiny — Anemone Badnik, moves very slowly and spits out projectiles. |
Technical information
| Offset | Description |
|---|---|
| 0D | CPZ Level Value |
| $2E02 | CPZ Palette |
| $2E62 | CPZ Underwater Palette |
| $D27C | CPZ layer deformation info |
| $401B2 | CPZ animated pattern load cue (0) |
| $40762 | CPZ misc sprite mappings |
| $42376 | CPZ object debug list |
| $453C0 | CPZ and DEZ primary 16x16 collision index |
| $454E0 | CPZ and DEZ secondary 16x16 collision index |
| $48774 | CPZ act 1 level layout |
| $48A84 | CPZ act 2 level layout |
| $4FAFE | Animated background section in CPZ and DEZ |
| $B5234 | CPZ/DEZ 16x16 block mappings |
| $B6174 | CPZ/DEZ main level patterns |
| $B90F4 | CPZ/DEZ 128x128 block mappings |
| $E5E2C | CPZ act 1 ring locations |
| $E5F9E | CPZ act 2 ring locations |
References
- ↑ 1.0 1.1 File:Sonic2 MD JP manual.pdf, page 31
- ↑ 2.0 2.1 2.2 File:Sonic2 MD EU manual.pdf, page 34
- ↑ 3.0 3.1 3.2 3.3 File:Sonic2 MD EU manual.pdf, page 35
- ↑ File:SonicClassics MD KR manual.pdf, page 26
- ↑ File:Sonic2 MD PT manual.pdf, page 17
- ↑ 6.0 6.1 6.2 6.3 https://note.com/beep21/n/n98e2ac3214bd
- ↑ File:Sonic2 MD US manual.pdf, page 14
- ↑ File:SonicJamOfficialGuide Book JP.pdf, page 39
| Sonic the Hedgehog 2 (16-bit) | |
|---|---|
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