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Sonic the Hedgehog
Hydropolis Zone

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Hydropolis Zone

Act 1
Act 2

Hydropolis Zone

Overview

First appearance

Sonic the Hedgehog (Didj) (only appearance)

Stage theme(s)

Statistics

Players (story mode)

Sonic the Hedgehog

Level number

2

Number of acts

2

Boss(es)

Graviton Mobile

Level order
Previous level	Next level
Grass Hill Zone	Scrap Plant Zone

Hydropolis Zone^[1] is the second Zone in Sonic the Hedgehog (Didj). As with other Zones in the game, Hydropolis Zone is composed of two Acts, with a boss fight at the end of the second.

Description[]

This section requires an expansion.

Story[]

This section requires an expansion.

Gameplay[]

This section requires an expansion.

Overview[]

Sandopolis Zone 3[]

This section requires an expansion.

Hydrocity Zone 4[]

This section requires an expansion.

Boss[]

Main article: Egg Gravitron

This section requires an expansion.

Trivia[]

The music used for Hydropolis Zone is the music for Flying Battery Zone Act 1 in Sonic the Hedgehog 3.
Several portions of Hydropolis Zone are taken from Sandopolis Zone and Hydrocity Zone in Sonic the Hedgehog 3 & Knuckles.

References[]

↑ Sonic the Hedgehog (Didj) game design document, pg. 32.

Sonic the Hedgehog (Didj)

Main article | Credits | Gallery

Playable characters		Sonic
Non-playable characters		Bubbles \| Dr. Eggman \| Animals (Becky, Flicky, Churps, Johnny Lightfoot, Locky, Mouse, Porker Lewis, Rocky, Sally Acorn, Tocky, Tux, Wocky)
Zones		Grass Hill Zone \| Hydropolis Zone \| Scrap Plant Zone \| Space Egg Zone \| Curricular Gadgets
Enemies		Buzzer \| Coconuts \| Grabber \| Grounder \| Masher \| Sandworm \| Skorp \| Spiny
Bosses		Drill Eggman \| Graviton Mobile \| Water Eggman \| Eggman Mech
Moves/Techniques		Duck \| Jump \| Roll \| Spin Dash
Gimmicks and obstacles		Cannon \| Catapult \| Conveyor belt \| Dropping platform \| Electrical emitter \| End Act Sign \| Glove on a stick \| Pneumatic tube \| Poison water \| Spikes \| Spring \| Star Post \| Switch \| Upward fan \| Word Wheel
Items		Chaos Emerald \| Egg Mobile \| Giant Ring \| Item Box (Invincible, One-Up, Shield, Super Ring, Super Sneakers) \| Ring
Other		Corkscrew \| Death Egg Robot \| Game Over \| Life \| Loop \| Tunnel
V·T·E \| Category

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