Factory/City cliché

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Jeez, Eggman's one busy little scientist! It always seems like he's building a technological city for himself in every game. I've also included levels that are set in factories of city-sized proportion, since they both seem to go along together. Metal galore, electric sparks, spikes, and nasty badniks are a few of the things often found in these zones. First Appeared: Scrap Brain Zone, Sonic 1 Also in:

• Chemical Plant Zone, Metropolis Zone, and Oil Ocean Zone, Sonic 2
• Gigalopolis Zone, Sonic Chaos
• Launch Base Zone, Sonic 3
• Metallic Madness Zone, Sonic CD
• Reactive Factory, Sonic R
• Hot Shelter and Final Egg, Sonic Adventure
• Egg Rocket Zone, Sonic Advance
• Techno Base and Egg Utopia, Sonic Advance 2
• Grand Metropolis and Power Plant, Sonic Heroes
• Egg Factory, Sonic Riders