The following are known Game Genie Codes for Amagon on Nintendo Entertainment System (NES).

• Start With Infinite Lives
  AAXGNYPA
• Start With 1 Life
  PEOVIZGA
• Start With 8 Lives
  AEOVIZGE
• Infinite Mega-Power
  GZSZIZSP
• Start With No Bullets
  PEOVPZGA
• Start With 600 Bullets
  YEOVPZGA
• Start With Infinite Bullets
  AAVYLTPA
• Gain 10 Bullets On Pick-Up
  PAVKUIZA
• Gain 30 Bullets On Pick-Up
  LAVKUIZA
• Bullets Shoot Like Normal But Then Fly Straight Up
  STTVYY
• No Music
  IIISSS