Uploaded December 2018 | Updated September 2026, 12 minutes ago

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There are two unused level slots in Sonic Chaos (both MS and GG). Both of them are near identical to Turquoise Hill zone, but there are some rather odd differences. The first one may have been a level after Electric Egg zone, while the second could be a cut special stage since it is grouped with the other special stages.

$00 - Turquoise Hill
$01 - Gigalopolis
$02 - Sleeping Egg
$03 - Mecha Green Hill
$04 - Aqua Planet
$05 - Electric Egg
$06 - Unused; unknown
$07 - Intro Cutscene
$08 - Special Stage 1
$09 - Special Stage 2
$0A - Special Stage 3
$0B - Special Stage 4
$0C - Special Stage 5
$0D - Unknown; Unused

Use code "00D299:0?" (where
'?' equals level ID) for Game
Gear version.

Use "00D297:0?" for Master
System version.

Make sure to enable the code after the intro cutscene.