The following are known Action Replay Codes for Asterix on SEGA Master System.

• Infinite Time – Minutes Digits
  00C0-A309
• Infinite Time – Seconds Digits
  00C0-A299
• Infinite Lives
  00C0-9D09
• Infinite Red Blocks (Hits)
  00C0-9A03
• Bombs From The Start
  00C0-8B01
• Bonus Stage After Every Level
  00C0-9F50
• Have Key From Start
  00C0-8C01
  Note: The game will say you do not have it, but you do.