The Moon Zone

From Sonic Retro

The Moon Zone is the extra stage in Sonic Advance, which can only be reached by obtaining all seven Chaos Emeralds from the Special Stages scattered throughout the game, while playing as Sonic, and then completing the X-Zone. It consists of Super Sonic racing along the ground and attacking Robotnik, who is in a mech in this boss. You start with 50 rings, and lose one a second, although it is possible to gain more rings by dashing into the Pacman-shaped orbs. This zone is possibly the easiest Extra Zone in the Sonic series, due to being able to simply dash into Robotnik to attack.

Sonic Advance
Main Article | Enemies | Bosses | Game Secrets | Bugs | Commercials | SCHG | Cheat Codes
SonicN
Main Article | Game Secrets | Bugs | SCHG | Cheat Codes
Levels in Sonic Advance/SonicN
Neo Green Hill Zone | Secret Base Zone | Casino Paradise Zone | Ice Mountain Zone | Angel Island Zone | Egg Rocket Zone | Cosmic Angel Zone | X-Zone | The Moon Zone | Special Stage

Sonic Advance Enemies
Drisame | Gamigami | Hanabii | Kerokero | Kiki | Kuraa | Leon | Mirror | Mogu | Oct | Pen | Pierrot | Rhinotank | Senbon | Slot | Stinger | Tentou | Wamu | Yukimaru
Sonic Advance Bosses
Egg Hammer Tank (NGHZ) | Egg Press (SBZ) | Egg Ball (CPZ) | Egg Spider (IMZ) | Mecha Knuckles (AIZ) | Egg Snake (CAZ) | Egg X (XZ) | The Moon Zone