The following are known Game Genie Codes for Daffy Duck: The Marvin Missions on Super Nintendo (SNES).

• Start With 1 Life
  DFBD-1DA4
• Start With 9 Lives
  DBBD-1DA4
• Start With 25 Lives
  49BD-1DA4
• Start With 51 Lives
  9FBD-1DA4
• Infinite Lives
  DDB3-3404
• Extra Lives Cost $500
  DDA8-4466
• Extra Lives Cost $1,500
  DFA8-4466
• Extra Life Power-Ups Don’t Work
  DD23-34D4
• Extra Life Power-Ups Worth 2
  D423-34D4
• Extra Life Power-Ups Worth 5
  D923-34D4
• Extra Lives Can’t Be Bought
  DDA3-3FA6
• 2 Extra Lives For Each Life You Buy
  D4A3-3FA6
• 5 Extra Lives For Each Life You Buy
  D9A3-3FA6
• Invincibility
  C283-3D6F
• Start With 1/2 Health
  D1B4-3DD7
• Start With 3/4 Health
  DBB4-3DD7
• Juice Cans Set Health To 1/2
  D121-CD64
• Juice Cans Set Health To 3/4
  DB21-CD64
• Start With 0 Gems
  DDB4-C764
• Start With 10 Gems (2 Continues)
  FDB4-C764
• Start With 25 Gems (5 Continues)
  49B4-C764
• Infinite Continues
  DDA2-C76C
• Gem Power-Ups Worth 0
  DD3C-446D
• Gem Power-Ups Worth 5 (1 Continue)
  D93C-446D
• Bought Gems Worth 0
  DDA6-34A6
• Bought Gems Worth 5 (1 Continue)
  D9A6-34A6
• Gems Are Free
  DDA8-44D6
• Start With 10 Ammo For All Guns (Except Blaster)
  FDBF-CF64
• Start With 50 Ammo For All Guns
  9DBF-CF64
• Start With 90 Ammo For All Guns
  BDBF-CF64
• Infinite Ammo (Must Have Some Ammo For The Gun To Be Selectable – Use Code `Start With Infinite Ammo’)
  DD85-17DD
• Freeze Gun Ammo Is Free
  DDAC-4406
• Freeze Gun Ammo Is $200
  4DAC-4406
• Electricity Gun Ammo Is Free
  DDAC-44A6
• Electricity Gun Ammo Is $150
  F9AC-44A6
• Three-Way Gun Ammo Is Free
  DDAC-4706
• Three-Way Gun Ammo Is $150
  F9AC-4706
• Bomb Gun Ammo Is Free
  DDAC-47A6
• Bomb Gun Ammo Is $150
  F9AC-47A6
• Anti-Matter Gun Ammo Is Free
  DDA8-4D06
• Anti-Matter Gun Ammo Is $200
  4DA8-4D06
• Bought Freeze Gun Ammo Is Worth 20 Instead Of 10
  4DAE-44D6
• Bought Electricity Gun Ammo Is Worth 20
  4DA9-1406
• Bought Three-Way Gun Ammo Is Worth 20
  4DA8-1466
• Bought Bomb Gun Ammo Is Worth 20
  4DAF-C4A6
• Bought Anti-Matter Gun Ammo Is Worth 20
  4DA5-C7D6
• Freeze Gun Ammo Power-Ups Are Worth 20 Instead Of 10
  4D28-4FA7
• Electricity Gun Ammo Power-Ups Are Worth 20
  4D26-1DA7
• Three-Way Gun Ammo Power-Ups Are Worth 20
  4D20-C7A7
• Bomb Gun Ammo Power-Ups Are Worth 20
  4D2F-34A7
• Anti-Matter Gun Ammo Power-Ups Are Worth 20
  4D23-3FA7
• Start With No Nutty Attacks
  DDBD-CF04
• Start With 3 Nutty Attacks
  D7BD-CF04
• Start With 5 Nutty Attacks
  D9BD-CF04
• Start With 7 Nutty Attacks
  D5BD-CF04
• Infinite Nutty Attacks
  C287-34AD
• Nutty Attacks Are Free
  DDA8-4F06
• Nutty Attacks Are $400
  0DA8-4F06
• Start With $2500 Instead Of $1500
  D4BD-C7D4
• Start With $3,500
  D7BD-C7D4
• Start With $9,500
  DBBD-C7D4
• Start With $30,500
  7DBD-C7D4
• Start With Almost No Fuel
  DDB4-C404
• Start With 2X Fuel
  F8B4-C404
• Start With 3X Fuel
  45B4-C404
• Jetpack Fuel Is Free
  DDA8-4DA6
• Fuel Is Consumed At 1/4 Normal Rate
  D1C8-14A7
• Fuel Is Consumed At 1/2 Normal Rate
  DAC8-14A7
• Fuel Is Consumed At 3/4 Normal Rate
  F4C8-14A7
• Fuel Power-Ups Are Worth 1/2 As Much
  D12B-17D4
• Fuel Power-Ups Are Worth 2X
  FC2B-17D4
• Bought Fuel Is Worth 1/2 As Much
  D1A2-C7A6
• Bought Fuel Is Worth 2X As Much
  FCA2-C7A6
• Start On Level 1-2
  DFB9-1D04
• Start On Level 1-3
  D4B9-1D04
• Start On Level 1-4
  D7B9-1D04
• Start On Level 2-1
  D0B9-1D04
• Start On Level 2-2
  D9B9-1D04
• Start On Level 2-3
  D1B9-1D04
• Start On Level 2-4
  D5B9-1D04
• Start On Level 3-1
  D6B9-1D04
• Start On Level 3-2
  DBB9-1D04
• Start On Level 3-3
  DCB9-1D04
• Start On Level 3-4
  D8B9-1D04
• Start On Level 4-1
  DAB9-1D04
• Start On Level 4-2
  D2B9-1D04
• Start On Level 4-3
  D3B9-1D04
• Start On Level 4-4
  DEB9-1D04
• Start On Level 5-1
  FDB9-1D04
• Start On Level 5-2
  FFB9-1D04
• Start On Level 5-3
  F4B9-1D04
• Start On Level 5-4
  F7B9-1D04