The following are known Game Genie Codes for Beavis and Butt-Head on SEGA Genesis.

• Beavis Doesn’t Take Damage From Shopping Carts, Mice, Frozen Yoghourt Cones, Oil, Bowling Balls, Skateboards, Thugs, Anderson Sewer Acid, Rats, Birds
  AXPT-CA7L
• Beavis Doesn’t Take Damage From Policemen, And Cool Girls
  AT3A-CA7Y
• Beavis Doesn’t Take Damage From More Sewer Acid
  AWRA-CA6N
• Beavis Doesn’t Take Damage From Anderson’s Dog
  ATSA-CA8R
• Beavis Doesn’t Take Damage From Junkyard Sewer Acid
  AWVT-CA60
• Beavis Doesn’t Take Damage From Getting Sick
  AVAT-CA2G
• Beavis Doesn’t Take Damage From Electricity
  ATFT-CA78
• Butt-Head Doesn’t Take Damage From Shopping Carts, Mice, Frozen Yogurt Cones, Oil, Bowling Balls, Skateboards, Thugs, Anderson, Sewer Acid, Rats, Birds
  AXRA-CA8L
• Butt-Head Doesn’t Take Damage From Policemen, Cool Girls
  AT3T-CA6R
• Butt-Head Doesn’t Take Damage From More Sewer Acid
  AWRT-CA24
• Butt-Head Doesn’t Take Damage From Anderson Dog
  ATSA-CA88
• Butt-Head Doesn’t Take Damage From Junkyard Sewer Acid
  AWWA-CA4C
• Butt-Head Doesn’t Take Damage From Getting Sick
  AVAT-CA2W
• Beavis & Butt-Head Don’t Take Damage From Getting Sick
  E3AT-CA2G
• Food Restores All of Beavis’ Attention Span
  AJYA-CA96
• Food Restores All of Butt-Head’s Attention Span
  AJYT-CA6J
• Snake Is Free
  CAEA-CA5A
• Toy Gun Is Free
  CJDT-CA7E
• Bat Is Free
  CAEA-CA2C
• Movie Tickets Are Free
  CLFT-CA5Y
• Always Have $6.40
  AM1A-CA7T
• Hospital Ride Is Easier To Win
  ABLT-CNF6
• Always Win The Hospital Ride
  AA0A-CACA
• Ticket Pieces That Are Returned To The Poster Are Not Lost When You Die
  AT8T-CA54