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Knuckles the Echidna in Sonic the Hedgehog 2/Hidden content

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Level select

S2 level select.png

On the title screen, press Up Up Up Down Down Down Left Right Left Right. A ring chime will be heard. Press A+Start to access the level select screen.

Edit mode

KiS2 MD Edit.png

On the Level Select screen, play songs 01, 09, 09, 04, 01, 00, 01, 08. A ring chime will be heard. Select a level, and press A+Start to start the level with edit mode.

Have all Chaos Emeralds

On the Level Select screen, play songs 01, 06, 07, 07, 07, 02, 01, 06. An emerald chime will be heard.

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
AX6D-AA3W Knuckles doesn't lose rings when hit.
HWLX-GA2Y Infinite time.
SD5X-BJT2 Rings worth 2.
SD5X-BNT2 Rings worth 3.
SD5X-BTT2 Rings worth 4.
SD5X-BYT2 Rings worth 5.
SD5X-B2T2 Rings worth 6.
SD5X-B6T2 Rings worth 7.
SD5X-BAT2 Rings worth 8.
AE5X-AAFY Knuckles starts with 1 life instead of 3.
AY5X-AAFY Knuckles starts with 5 lives.
A65X-AAFY Knuckles starts with 7 lives.
BE5X-AAFY Knuckles starts with 9 lives.
DE5X-AAFY Knuckles starts with 25 lives.
GJ5X-AAFY Knuckles starts with 50 lives.
KN5X-AAFY Knuckles starts with 75 lives.
NN5X-AAFY Knuckles starts with 99 lives.
JV1D-CA6W Infinite lives.
PVWD-CRDC High jump Knuckles.
ABWD-CWDC Super jump for Knuckles.
ABWD-C2DC Mega jump for Knuckles.
ABWD-DTDC Orbital jump for Knuckles.

Unofficial codes

Code Effect
ABWX-CADG Become Super Knuckles with 0 rings.
ABXD-CACA Don't use up rings to maintain transformation of Super Knuckles.
ABWX-CAC8 Become Super Knuckles with 0 emeralds.
ADFW-8AF6 The regular level music plays when Super Knuckles, instead of the Super theme.

Action Replay

Unofficial codes

Code Effect
FFFF08:01 Enable Level Select.
FFFE10:XXYY Stage/Act Modifier (XX = Zone, YY = Level).
  • 00 - Emerald Hill
  • 04 - Metropolis
  • 05 - Metropolis 3
  • 06 - Wing Fortress
  • 07 - Hill Top
  • 08 - Hidden Palace (!)
  • 0A - Oil Ocean
  • 0B - Mystic Cave
  • 0C - Casino Night
  • 0D - Chemical Plant
  • 0E - Death Egg
  • 0F - Aquatic Ruin
  • 10 - Sky Chase
FFFF0A:01 Enable Debug Mode.
FFFFB1:07 All 7 Chaos Emeralds Collected.

References


Sonic the Hedgehog 2 (16-bit)
Sonic2 title.png

Main page (KiS2|2013|3D|Ages)
Comparisons (KiS2) (2013)
Maps (KiS2) (2013)
Achievements
Credits


Manuals
Promotional material
Magazine articles
Video coverage
Reception
Merchandise


Development
Hidden content (KiS2) (2013)
Bugs (KiS2) (2013)
Region coding
Hacking guide
Bootlegs

Sonic & Knuckles
Sonic & Knuckles title.png

Main page (S3&K|KiS2|Blue Sphere)
Comparisons
Maps (S3&K) (KiS2) (Blue Sphere)
Achievements
Credits


Manuals
Promotional material
Magazine articles
Video coverage
Reception
Merchandise


Development
Hidden content (S3&K)
Bugs (S3&K)
Region coding
Hacking guide
Bootlegs