GAME GENIE CODES: Sonic The Hedgehog.

 No.  Code  Effect
   1  ATBT-AA32  MASTER CODE--MUST BE ENTERED
   2  AE3T-AACL  Start with 1 life
   3  AY3T-AACL  Start with 5 lives
   4  AE0T-CABE  Once invincible, stay invincible for the rest of stage or until you die
   5  SCRA-BJX0  Each ring counts as 2
   6  SCRA-BNX0  Each ring counts as 3
   7  SCRA-BTX0  Each ring counts as 4
   8  SCRA-BYX0  Each ring counts as 5
   9  SCRA-B2X0  Each ring counts as 6
 10  SCRA-B6X0  Each ring counts as 7
 11  SCRA-BAX0  Each ring counts as 8
 12  GJ6A-CA7A  Infinite lives
With Code 13 - Access the level select menu by holding down "A" while pressing Start.
This MUST be done at the title screen, while Sonic is waving his finger!
NOTE: Some Codes don't work if you start on a special stage using this code!
 13  AJ3A-AA4G  Level select menu  
 14  AY3T-BA4R  Start with 5 chaos emeralds
 15  DDLT-AAGL  Super jump
 16  BDLT-AAGL  Skywalking - watch out...
 if you go too high you may find yourself in a strange place!
 17  KDLT-AAGL  Low jump
 18  AEOT-CABY    Once you have shoes, keep shoes for the rest of stage or until you die  

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