The following are known Game Genie Codes for A Boy and His Blob on Nintendo Entertainment System (NES).

• 1 Life Only
  AAULNGIA
• Double Lives
  ZAULNGIE
• Infinite Lives
  GXXEOPVG
• Infinite Jellybeans
  AAVKIPPA
• Fast Play
  SXEEZAAX
• Invincible
  AVOGAEOZ
• Never Take Damage From Enemies
  AVOPVGEI
• Gives 10 Orange Jellybeans
  APEUUIAA
• 10 Lime Jellybeans
  AONUSGAA
• 99 Licorice Jellybeans
  OONLOGZN
• Double Strawberry Jellybeans
  AUNLUGIP
• Double Cola Jellybeans
  TUNLNKAP
• Double Cinnamon Jellybeans
  AKNUOGGX
• Double Apple Jellybeans
  GXNUUGZP
• Double Vanilla Jellybeans
  AVNUNGAL
• Double Ketchup Jellybeans
  ZPELNITA
• Triple Coconut Jellybeans
  AONLSGTE
• Triple Rootbeer Jellybeans
  APELUITE
• 10 Vitamin A For Vita-Blaster
  APEUSIAA
• 10 Vitamin B For Vita-Blaster
  APEUNIAA
• 10 Vitamin C For Vita-Blaster
  APOLOIAA
• Gives 101 Of All Starting Jellybeans
  SZXLXKSU
  YYXLUGEY
• Start With Many Lives
  YYULNGIA
• Start With 77 Orange Jelly Beans
  YYEUUIAA
• Start With A Lot Of Licorice Jellybeans
  NNNLOGZN
• Start With A Lot Of Strawberry Jellybeans
  NNNLUGIP
• Start With A Lot Of Cola Jellybeans
  NNNLNKAP
• Start With A Lot Of Cinnamon Jellybeans
  NNNUOGGX
• Start With A Lot Of Apple Jellybeans
  NNNUUGZP
• Start With A Lot Of Vanilla Jellybeans
  NNNUNGAL
• Start With A Lot Of Ketchup Jellybeans
  NNELNITA
• Start With A Lot Of Coconut Jellybeans
  NNNLSGTE
• Start With A Lot Of Rootbeer Jellybeans
  NNELUITE
• Start With 77 Vitamin A Pills For Your Vita-Blaster
  YYEUSIAA
• Start With 77 Vitamin B Pills For Your Vita-Blaster
  YYEUNIAA
• Start With 77 Vitamin C Pills For Your Vita-Blaster
  YYOLOIAA