The following are known Game Genie Codes for Chuck Rock on SEGA Genesis.

• Heart Restores Health Completely
  SG5T-B2T4
• Hearts Are Worth Nothing
  AW5T-AA24
• Protection from Drowning
  AXHA-AA6J
  Note: Do not hold a rock underwater.
• Infinite Health
  B5RA-AA3Y
• Start On Level 2, Zone 2
  AJAT-EAA2
  AJAT-EABA
• Start On Level 2, Zone 3
  AJAT-EAA2
  ANAT-EABA
• Start On Level 2, Zone 4
  AJAT-EAA2
  ATAT-EABA
• Start On Level 2, Zone 1
  AJAT-EAA2
• Start On Level 3, Zone 2
  ANAT-EAA2
  AJAT-EABA
• Start On Level 3, Zone 3
  ANAT-EAA2
  ANAT-EABA
• Start On Level 3, Zone 1
  ANAT-EAA2
• Start On Level 4, Zone 2
  ATAT-EAA2
  AJAT-EABA
• Start On Level 4, Zone 3
  ATAT-EAA2
  ANAT-EABA
• Start On Level 4, Zone 4
  ATAT-EAA2
  ATAT-EABA
• Start On Level 4, Zone 1
  ATAT-EAA2
• Start On Level 5, Zone 2
  AYAT-EAA2
  AJAT-EABA
• Start On Level 5, Zone 3
  AYAT-EAA2
  ANAT-EABA
• Start On Level 5, Zone 1
  AYAT-EAA2
• Start On Level 1, Zone 2
  AJAT-EABA
• Start On Level 1, Zone 3
  ANAT-EABA
• Start On Level 1, Zone 4
  ATAT-EABA
• Start On Level 1, Zone 5
  AYAT-EABA
• Start With 2 Lives
  AEAT-EABW
• Start With 6 Lives
  AYAT-EABW
• Start With 8 Lives
  A6AT-EABW
• Start With 10 Lives
  BEAT-EABW
• Unlimited Lives
  BTCT-EA5E
• Start With Less Health On 1st Life
  ANAT-EAEY
• Less Health On Lives After 1st Life
  ANCT-EAD8