The following are known Game Genie Codes for Sim City on Super Nintendo (SNES).

• Money Doesn’t Decrease For Most Types Of Spending
  C28A-AD61
• Time Goes Faster
  DD67-DFAA
• Time Goes Slower
  DE67-DFAA
• Start Easy Game With $40,000
  0DAB-6D02
  BAAB-6D62
• Start Easy Game With $60,000
  1DAB-6D02
  3CAB-6D62
• Start Easy Game With $3,000
  86AB-6D02
  D8AB-6D62
• Get One Dollar Every Time You Build Something
  E38A-AD61
• Start With $65,535, On Easy Game
  EEAB-6D02
  EEAB-6D62
• Infinite Money
  36DB-2E5C
  E2DB-2E8C
• Can Bulldoze Portions of Buildings, Fires, Radioactivity, Etc
  DD80-0709
• All Buildings Have Power
  DD86-046A