Secret Base Zone

From Sonic Retro

Sonic Retro emblem.svg Sonic Advance
Secret Base Zone
Secret Base Zone
Second level, Sonic Advance
Number of Acts: 2
Level theme: industrial
Boss: Egg Press
Non-English names:
  • JP: シークレットベースゾーン Shīkurettobēsuzōn
Neo Green Hill Zone | Casino Paradise Zone

Secret Base Zone is the second level of Sonic Advance for the GameBoy Advance. A typical factory installation of the Eggman Empire, this industrial setting features a host of manufacturing-based obstacles: swinging hooks to leap across the ceiling, pressurized tubes to sweep you through a pipe network; steam tops, lava crucibles, free-floating iron platforms... Less usual gimmicks include ziplines criss-crossing the foreground, and dual chutes that drop the player through the background.

Many of the features in this level first debuted in Metropolis Zone from Sonic the Hedgehog 2.

A unique effect in the very first, outdoor part of Act 1 is an interesting floodlight motif, later used in Sonic Advance 2's Ice Paradise Zone.


  • Mogu - Mole badnik that pops out of the ground.
  • Tentou - Moth badnik that shoots energy balls.
  • Senbon - Pufferfish badnik.


Sonic Advance
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Hidden content
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