Oil Ocean Zone

Located on West Side Island

Sonic the Hedgehog 2 (16-bit) - Oil Ocean Zone
"'Robotnik's refineries are pumping at full steam. Crude oil has turned the ocean black! Can Sonic keep his footing on the slippery catwalks and bursting steam vents?' — Sonic the Hedgehog 2 (16-bit) instruction manual"

The underground passageways of Mystic Cave Zone/Hidden Palace apparently lead out to the sea, for Sonic and Tails now find themselves scaling slimy oil refineries off the coast of West Side Island. In a manner typical of the Doctor's environmental ethos, Robotnik clearly isn't too concerned about keeping the maritime habitats of West Side Island in pristine condition. His drilling platforms have blanketed the ocean in viscous petroleum sludge; the only creatures that move are robotic ones, Octus and Aquis Badniks floating amidst the steel gantries of the rigs.

The oil does, on the other hand, afford Sonic a means of survival should he fall off the level. While the hedgehog can't swim in water, the gloopy hydrocarbons mean the player won't sink as long as he/she keeps jumping. Often, floating fans will provide a means to get back to solid ground.

In addition, the Zone hosts strange green/yellow checkered cannons, which throw Sonic back and forth around the level. Flame-propelled gas-burn platforms also provide a means by which to gain altitude (and access secret monitors on occasion).

Nearby

 * Hill Top Zone - Sonic the Hedgehog 2 (16-bit)
 * Hidden Palace Zone - Sonic the Hedgehog 2 (16-bit)
 * Metropolis Zone - Sonic the Hedgehog 2 (16-bit)