The following are known GameShark Codes for Lemmings & Oh No! More Lemmings on Sony Playstation (PS1).

• Max Reversed Joker Command
  D006E326 ????
• Infinite Climbers
  8005B1E0 0010
• Infinite Floaters
  8005B1E4 0010
• Infinite Bombers
  8005B1E8 0010
• Infinite Blockers
  8005B1EC 0010
• Infinite Builders
  8005B1F0 0010
• Infinite Bashers
  8005B1F4 0010
• Infinite Miner
  8005B1F8 0010
• Infinite Diggers
  8005B1FC 0010
• 1 Lemming To Complete Level
  8005B1B4 0001
• Lemming Modifier Needed To Complete Level
  8005B1B4 00??
• Lemmings Saved Modifier
  80047950 00??
• Release Rate Modifier
  80056118 00??
• Infinite Time
  3008321F 0012
• 80 Lemmings
  8005B1B8 0050
• Minimum Release Rate of 1
  8005B1B0 0001
• Unlock All Levels
  5000D001 0000
  3004A5B2 0001