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Chemical Plant Zone
From Sonic Retro
» »
- "Chemical Plant" redirects here. For the Sonic Generations level, see Chemical Plant (Sonic Generations)
The second zone in Sonic 2, Chemical Plant Zone is Dr. Robotnik's chemical plant, full of tubes and floating platforms. He uses a new substance called "Mega Mack" to try to kill Sonic.
Instruction Manual Description
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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!
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„
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| —Sonic 2 US Manual, p. 12
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| “
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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).
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„
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| —Yuji Naka
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Enemies
- Grabber - Spider enemy, hangs from the ceiling and grabs Sonic. Then unless Tails can destroy the Grabber, it explodes and hurts/kills Sonic.
- Lander - Anemone enemy, moves very slowly and spits out missiles.
Technical Information
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Description
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| 0D
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CPZ Level Value
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| $2E02
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CPZ Palette
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| $2E62
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CPZ Underwater Palette
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| $D27C
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CPZ layer deformation info
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| $401B2
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CPZ animated pattern load cue (0)
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| $40762
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CPZ misc sprite mappings
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| $42376
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CPZ object debug list
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| $453C0
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CPZ and DEZ primary 16x16 collision index
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| $454E0
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CPZ and DEZ secondary 16x16 collision index
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| $48774
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CPZ act 1 level layout
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| $48A84
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CPZ act 2 level layout
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| $4FAFE
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Animated background section in CPZ and DEZ
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| $B5234
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CPZ/DEZ 16x16 block mappings
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| $B6174
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CPZ/DEZ main level patterns
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| $B90F4
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CPZ/DEZ 128x128 block mappings
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| $E5E2C
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CPZ act 1 ring locations
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| $E5F9E
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CPZ act 2 ring locations
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1
| Sonic the Hedgehog 2 (16-bit)
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Sonic 2
Main Article (KiS2)
Levels
Enemies
Bosses
Bug List
Prereleases
Music: OSV / OST
Level Maps
Cheat Codes (KiS2)
Commercials
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Game Development
Game Secrets
SCHG
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Enemies and Obstacles:
Scrapped Enemies and Obstacles:
Cheat Codes:
These are cheat codes which can be accessed by inputting button sequences or by various other methods.
Note: in cheat codes, + signifies that the buttons must be held simultaneously.
- Zone Select: Play tunes 19, 65, 09, 17 on the options screen,
 + on title screen.
- 14 Continues: Play tunes 01, 01, 02, 04 on the options screen. An incorrect sound command is issued, causing OOZ music to continue playing until a reset.
- Super Sonic: Play tunes 04, 01, 02, 06 on the zone select sound test, an emerald sound triggers, select zone, hold until Sonic appears.
- Debug mode + Slow-motion/Restart: Play tunes 01, 09, 09, 02, 01, 01, 02, 04 on the zone select sound test, a ring sound triggers, select zone, hold until Sonic appears.
- Super Sonic + Debug: Play tunes 01, 09, 09, 02, 01, 01, 02, 04, 01, 02, 06 on the zone select sound test, a ring sound triggers after 04 and an emerald sound triggers after 06, select zone, hold until Sonic appears.
For a list of all codes, see Cheat Codes:Sonic the Hedgehog 2 (16-bit).
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