Sonic News Network

Know something we don't about Sonic? Don't hesitate in signing up today! It's fast, free, and easy, and you will get a wealth of new abilities, and it also hides your IP address from public view. We are in need of content, and everyone has something to contribute!

If you have an account, please log in.


Sonic News Network
Sonic News Network
What can I include for you.png
This article's name is conjectural.
Although this article is based on official information, the actual name of the article's subject is pure conjecture.

A sinking pool in Oil Ocean Zone, from Sonic Mania.

The sinking pool is an obstacle in the Sonic the Hedgehog series, which first appeared in Sonic the Hedgehog 2.


Overall, sinking pools consist on pools of either oil, mud or quicksand depending on the Zone's theme. If a playable character falls in one of them, they will gradually sink into it. The player can jump continuously in the sinking pools to stay above their surface and cross them.

Game appearances

Sonic the Hedgehog 2

A sinking pool in Oil Ocean Zone, from Sonic the Hedgehog 2.

In Sonic the Hedgehog 2, and its lock-on game Knuckles the Echidna in Sonic the Hedgehog 2, sinking pools are featured in Oil Ocean Zone. Here, the bottom of the entire Zone is flooded in thick crude oil that serve as the sinking pools. If the playable character sinks to the bottom of the sinking pool, they will eventually fall into a bottomless pit, costing them a life. The player can survive in a sinking pool if they constantly jump, allowing them to stay on its surface.

Sonic the Hedgehog 3 & Knuckles

A sinking pool in Marble Garden Zone, from Sonic the Hedgehog 3.

In Sonic the Hedgehog 3, and the lock-on game Sonic the Hedgehog 3 & Knuckles, sinking pools of mud swamps (ドロ沼[1] doronuma?) are featured throughout Marble Garden Zone. They work the same as in Sonic the Hedgehog 2. A single dark blue mud swamp also appears in Azure Lake. Sinking to the bottom of this mud swamp will cause the player to respawn at the start of the course. There is also a large quicksand pit in Desert Palace, which will lead the player into a bottomless pit if they sink in it.

In Sonic & Knuckles, and its lock-on version Sonic the Hedgehog 3 & Knuckles, there are quicksand pits throughout Sandopolis Zone. Most of them serve as sinking pools that will drown the playable character. Others, however, have secret areas underneath them that can be accessed if the player let themselves sink into them. The Guardian must as well be defeated by luring it into or knocking it into a quicksand pit.

Sonic Adventure 2

In Sonic Adventure 2 and its remake Sonic Adventure 2: Battle, Hidden Base and Sand Ocean have quicksand fields. However, should Tails or Dr. Eggman fall into these quicksand pits, they will be unable to leap out of the quicksand due to both of them using a heavy walking mech, although they will still slowly sink into it, resulting in an instant loss of life. On the other hand, during the battle against the Egg Golem, if Sonic falls into the quicksand pit at the bottom, he can repeatedly jump to avoid sinking to his doom, and grab onto one of the pulleys to return to the upper area; if Eggman slips into the same pit during his fight against the Egg Golem, then he will automatically sink into it.

Sonic the Hedgehog 4: Episode II

In Sonic the Hedgehog 4: Episode II, sinking pools consist on quicksand sections, similar to Sandopolis Zone. They are found in the first three Acts of Oil Desert Zone, where sinking into the quicksand slows the playable character down rather than makes the player lose a life.

Sonic Mania

In Sonic Mania, and its expansion Sonic Mania Plus, sinking pools made of oil make an appearance in Oil Ocean Zone. Like in Sonic the Hedgehog 2, large sinking pools appear at the very buttom of the Zone, costing the player a life if their character sinks deep into them. There are also sinking pools at various points of Oil Ocean Zone Act 2. However, sinking into them will not make the player lose a life. Some of them can also lead to secret pathways. In addition, if the fire of a Gohla or a Flame Shield touches a sinking pool, it will catch fire for a few seconds.

See also


  1. (in Japanese) ソニック・ザ・ヘッジホッグ3 公式ガイドブック. Shogakukan. 1 July 1994. p. 14. ISBN 978-4091024794.

Main article (Knuckles in Sonic 2) | Staff | Manuals | Glitches | Beta elements | Gallery | Pre-releases (Nick Arcade, Simon Wai) | Re-releases (2006, 2013, 3D, Sega Ages)

Main article (Sonic 3 & Knuckles) | Staff | Manuals | Glitches | Beta elements | Gallery

Main article (Blue Sphere, Knuckles in Sonic 2, Sonic 3 & Knuckles) | Credits | Manuals | Beta elements | Gallery

Main article | Scripts (Hero, Dark, Last) | Staff | Manuals | Glitches | Beta elements | Gallery | Pre-releases (The Trial) | Re-releases (Battle, 2012)

Main article | Staff | Glitches | Manuals | Beta elements | Gallery | Re-releases (Plus)