Located right in the center of the Newtrogic High Zone and styled as an amusement park, World Entrance is the nerve center of Dr. Robotnik’s entire island base. It is here that the transition to all stages of the island and the Combi Catchers with captured heroes are located. In addition, the local mechanisms are specially designed to enhance Metal Sonic in the event of a battle in the center of World Entrance.

The training area and Newtrogic High Zone’s safest place, Isolated Island refers to the coast of Dr. Robotnik’s captured island, which is free of robots and traps, but which contains a Combi Catcher with Espio captured in it. It is from here that Knuckles begins the liberation of the island and frees Espio.

Dr. Robotnik’s final “ultimate weapon” base, the Atomic Destroyer Zone, is a concentration of danger, a mechanical maze filled with enemies and traps. This is where Robotnik waits for Sonic and Tails with the last Chaos Emerald, and where Metal Sonic prepares to face the heroes again.

An underwater station designed as one of the last lines of ultimate weapon defense, the Tidal Plant Zone is a flooded maze of mechanisms and robots of Dr. Robotnik.

Once an island of eternal spring, after the cataclysm caused by Dr. Robotnik, it became a valley of eternal cold and ice. Like Ice Cap Zone from Sonic the Hedgehog 3 & Knuckles (1994), Sonic uses snowboard to move quickly through the snow.

The Meta Junglira Zone is a deep, impenetrable jungle mixed with swamps. Tall trees intertwined with strong lianas cover the sky. Tree hollows form dark, cave-like passageways, and tree branches serve as bridges to cross over the deadly surface of an all-sucking swampy water.

A long-abandoned amusement park used by Dr. Robotnik as a trap for Sonic and Tails, Sunset Park Zone is a rusty set of metal structures that once served to entertain people. Robotnik’s trains run on rails designed for roller coasters, and the park itself is filled with villain’s robots and traps.

A tropical paradise inheriting Turquoise Hill Zone from Sonic Chaos (1993), which in turn inherited Green Hill Zone. It is a quiet area to get acquainted with the game, without a lot of enemies and traps.