Sonic the Hedgehog 3 (prototype; 1993-11-03)/Hidden content

Back to: Sonic the Hedgehog 3 (prototype; 1993-11-03).

Level select

Enabled by default. Simply press on the title screen. Mushroom Valley and Sandopolis do not lead anywhere. Pressing increments a counter that determines the players' characters in the Competition mode Zones, with the first controller incrementing the left counter and the second counter incrementing the right:

• 00 - Sonic
• 01 - Tails
• 02 - Knuckles

Edit mode

Play sounds 01, 03, 05, 07 in the sound test, or press on the title screen, then highlight a Zone and press +.

Night mode

Enable the edit mode code above and hold + when selecting a level.

All Chaos Emeralds

Play sounds 02, 04, 05, 06 in the sound test. A Chaos Emerald sound will confirm correct entry. However, transformation into Super Sonic is not possible.

Unused content

Art

	Description

Objects

Placeable in edit mode

	Description
	The "S" monitor, which transforms Sonic into Super Sonic when broken. It can only be placed in Hydrocity Zone in this prototype.
	Blaster, placeable in Flying Battery Zone. Like in Sonic 3 final, its projectiles can be destroyed like regular Badniks.
	Technosqueek, placeable in Flying Battery Zone.
	Dragonfly, placeable in Mushroom Valley Zone.
	Cluckoid, placeable in Mushroom Valley Zone.
	Butterdroid, placeable in Mushroom Valley Zone.
	Madmole, placeable in Mushroom Valley Zone.

Others

	Description
	Hey Ho, normally reserved as the mini-boss of Mushroom Valley Zone.
	The Guardian, normally reserved as the mini-boss of Sandopolis Zone.

Moves

Cheat device codes

These are cheat codes that can only be used with game enhancer devices. Support for these codes is available in most emulators.

Action Replay

Unofficial codes

Code	Effect	Reference
FFFFFA:0100	Force debug mode.
FFFF0B:00??	Character modifier (??: Character). 00 - Sonic and Tails 01 - Sonic 02 - Tails
00039A:0004	Jump directly to Title Screen (on boot).
00039A:0028	Jump directly to Level Select (on boot).
00039A:0024	Jump directly to Sonic 2 Options Screen (on boot).
04B488:??01	Force debug monitors for Angel Island Zone Act 1 (??: Monitor subtype). 00 - Static (hurts the player) 01 - 1-Up 02 - Eggman Mark 03 - Super Ring 04 - Power Sneakers 05 - Fire Shield 06 - Lightning Shield 07 - Water Shield 08 - Invincibility 09 - "S" (Super Sonic) 0A - Broken
04B5C0:??01	Force debug monitors for Angel Island Zone Act 2 (??: Monitor subtype).
04B734:??01	Force debug monitors for Hydrocity Zone (??: Monitor subtype).
04B952:??01	Force debug monitors for Marble Garden Zone (??: Monitor subtype).
04BAB2:??01	Force debug monitors for Carnival Night Zone (??: Monitor subtype).
04BC1C:??01	Force debug monitors for Flying Battery Zone (??: Monitor subtype).
04BC96:??01	Force debug monitors for IceCap Zone Act 1 (??: Monitor subtype).
04BDEC:??01	Force debug monitors for IceCap Zone Act 2 (??: Monitor subtype).
04BF42:??01	Force debug monitors for Launch Base Zone Act 1 (??: Monitor subtype).
04C0AC:??01	Force debug monitors for Launch Base Zone Act 2 (??: Monitor subtype).
04C23E:??01	Force debug monitors for Mushroom Valley Zone (??: Monitor subtype).
04C312:??01	Force debug monitors for Sandopolis Zone(??: Monitor subtype).
04C364:??01	Force debug monitors for Lava Reef Zone/Hidden Palace Zone (??: Monitor subtype).
04C3D4:??01	Force debug monitors for Sky Sanctuary Zone/Death Egg Zone Act 1 (??: Monitor subtype).
04C426:??01	Force debug monitors for Death Egg Zone Act 2 (??: Monitor subtype).
04C478:??01	Force debug monitors for The Doomsday Zone (??: Monitor subtype).
04C4CA:??01	Force debug monitors for the Special Stage (??: Monitor subtype).
04C922:??01	Force debug monitors for the Bonus Stage (??: Monitor subtype).
04A8D0:46EE 04A8D4:46EE 04A8E8:46EE 04A8EC:46EE	Mushroom Valley 1 decompression fix.
04A930:46EE 04A934:46EE 04A948:46EE 04A94C:46EE	Lava Reef 1 decompression fix.