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

• Start With 1 Life
  01B-0BD-E66
• Start With 5 Lives
  05B-0BD-E66
• Start With 9 Lives
  09B-0BD-E66
• Almost Infinite Bulbs
  00B-5ED-3B7
• Start With 1 Bulb
  01B-06D-E66
• Start With 5 Bulbs
  05B-06D-E66
• Start With 9 Bulbs
  09B-06D-E66
• Lose All Your Bulbs On The 1st Level & Move Onto The Next Level
  00B-0FD-5D4