Sonic the Hedgehog Triple Trouble/Hidden content

Zone select

When turning on the Game Gear, hold , and then press the instant Knuckles picks up the third Chaos Emerald in the title sequence. If performed correctly, a ring sound will play. Select your character, and then the level select will appear.

Unused content

Art

Art	Description
	Unused hurt or tiring animations used for Knuckles while he was gliding.
	Some sprites of Nack blinking. These are never shown in normal gameplay.
	Nack holding a Chaos Emerald.
	Unused Nack end of level sign. It could mean Nack was going to be a playable character, or it could have given you a bonus if you get it.
	A spike in Great Turquoise Zone. There are spikes used inside, but this outside spike isn't.
	Another unused spike and a 30 degree slope from Meta Junglira Zone.
	A 45 degree slope in front of the stage background and an outside spring from Robotnik Winter Zone.
	Many, many unused springs in Tidal Plant Zone. The giant bubbles in this stage make most of these springs useless.
	Enemy found through the tile viewer in Atomic Destroyer Zone.
	Several unused slope types, spikes, and unused border tiles for use in Special Stages.

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.

Game Genie

Official codes

Code	Effect	Reference
`053-AFC-E6E`	Each Ring Worth 5.
`0A3-AFC-E6E`	Each Ring Worth 10.
`3A8-E4C-2A2 + 3A8-E7C-2A2`	Infinite Rings.
`008-FFC-08B`	Flash Less Time After Getting Hit.
`998-FFC-08B`	Flash Longer After Getting Hit.
`3A9-D5C-2A2`	Get Hit And Stay Invincible.
`00A-E6E-E66`	Start With 1 Lives.
`04A-E6E-E66`	Start With 5 Lives.
`14A-E6E-E66`	Start With 15 Lives.
`99A-E6E-E66`	Start With 100 Lives.
`003-E0E-E6E`	Infinite Lives.
`00F-88D-3B7`	Infinite Time.
`00A-EBE-E6E`	Start With No Continues.
`05A-EBE-E6E`	Start With 5 Continues.
`0AA-EBE-E6E`	Start With 10 Continues.
`3A5-60E-2A2`	Infinite Continues.
`C37-F2C-E61`	Invincible (Spikes Still Kill You).
`00A-EFE-5D4`	Start High In The Air On Act 1.
`3E3-A4E-082 + 023-A5E-F77 + 003-A6E-A2D`	Finish The First Part Of An Act And Warp To The Next Act.