The following are known Game Genie Codes for Virtual Bart on SEGA Genesis.

• Infinite Energy In The Prehistoric Level
  ALNA-GA84
• Infinite Energy In The Baby Bottle Level
  AJ5A-GA5N
  Note: You can still due if you fall to the ground.
• Protection From Clown With Shock Stick In Pig Bart Level
  AMTT-GA4G
• Protection From Clown With Hammer In Pig Bart Level
  AMVT-GA34
• Start The Prehistoric Level With 9 Lives (Instead Of 2)
  BGWT-AADG
• Start The Prehistoric Level With 25 Lives
  DGWT-AADG
• Start The Baby Bottle Level With 25 Lives
  DGWA-AAG4
• Start The Pig Bart Level With 25 Lives
  DGWA-AAEW
• Infinite Lives (Doesn’t Work On Levels That Start With Zero Lives)
  AKWA-AA46
• Infinite Time
  AKWT-AA24
  Note: Does not effect the Tomato and Motorcycle Levels. You may have to turn this off on some levels.
• Infinite Time on Tomato and Motorcycle Levels
  AL9A-EA34
• Infinite Tomatoes in Tomato Level
  AMEA-EA9Y
  Note: Be careful when using this code along with the Infinite Time code above for the Tomato Level as it will cause the level to never end.