Robotnik Egg Zone

Sonic Heroes 2 locations Sandopolis Lava Reef Zone Hidden Palace Zone Angel Island Green Hill Zone Mecha Green Hill Zone Emerald Hill Zone Great Turquoise Zone Resort Island Sunset Park Zone Atomic Destroyer Atomic Destroyer Zone Launch Base Zone Chemical Plant Zone Hill Top Zone Station Square Underground Radical City Metropolis Oil Ocean Zone Aquatic Mine Casinopolis Marble Garden Zone Mystic Ruins Mystic Ruins North Mystic Ruins South Mystic Ruins Underground Gigalopolis Jungle Meta Junglira Zone Icecap Robotnik Winter Zone Marine Ocean Zone Aqua Lake Zone Troll Bridge Zone Aqua Planet Zone Reactive Factory Star Light Zone Scrap Brain Zone Labyrinth Regal Ruin Aquatic Ruin Zone Tidal Plant Zone Robotnik Egg Zone Sleeping Egg Zone Electric Egg Zone Scrambled Egg Zone Crystal Egg Zone Spring Yard Zone Gimmick Mountain Zone HydroCity Egg Carrier Radiant Emerald Sky Chase Zone

Sonic_Heroes_2_characters Team name Member 1: Member 2: Member 3: Member 4: Team Sonic Sonic Shadow Silver Scourge Team Rose Amy Blaze Cream Vanilla Team Underground Tails Cosmo Manic Sonia Team Knuckles Knuckles Shade Mighty Ray Team Archaic Mina Max Mach Sharps Team Big Big Honey Marine Tikal Team Chaotix Espio Charmy Vector Saffron Team Covert Ashura Wechnia Nazo Covert Team Dark Rouge Fang Bark Bean Team Babylon Jet Wave Storm Hurricane Team Badnik Scratch Grounder Coconuts Metal Sonic Team Eggman Eggman Eggman Nega Chaos Emerl Metal Sonic II Miscellaneous Tiara Froggy Fiona Fox Egg Pawn Nic Tempest Megatox Guidashir

Robotnik Egg Zone does exist, and it can be found in real encyclopedias. You may read more about it here: Crystal Egg Zone Electric Egg Zone Scrambled Egg Zone Sleeping Egg Zone

In the game Sonic Heroes 2, four archaic bases, known as eggs (obviously, as Eggman erected all four), are present and used heavily. They originate from the 8-bit games Sonic the Hedgehog (Scrambled and Crystal) and Sonic Chaos (Sleeping and Electric); the following are descriptions of the four eggs involved.

Crystal Egg Zone

Crystal Egg Zone is a location in the Sonic series. It is accessible by Scrambled Egg Zone only until Team Badnik crashes into it via Electric Egg Zone.

Electric Egg Zone

Electric Egg Zone is a location in the Sonic series. In Sonic Heroes 2, Team Badnik inhabit the base, in spite of it being a sparking mania, with rogue electrical conduits lurking. There is a section of loose tiles near the back which conceal an underground passage.

Scrambled Egg Zone

Scrambled Egg Zone is a location in the Sonic series. It is the half of Gimmick Mountain that has not been cleansed by Team Rose. They did not renovate the entire of Gimmick Mountain Zone, and so the borders have changed slightly between Gimmick Mountain Zone and Scrambled Egg Zone.

Sleeping Egg Zone

Sleeping Egg Zone is a location in the Sonic series and is the only egg that starts off accessible via more than one location (Crystal Egg is only accessible via Electric Egg after Team Badnik vandalises Jungle Zone), via Gigalopolis and Mecha Green Hill Zone.