The following are known Game Genie Codes for Rockman X3 on SEGA Genesis.

• Master Code – Must Be On
  AABA-AGAE
  Note: Use this code if you get a “DECODE ERROR” and the game will not run.
• Protection From All Enemies And Bosses
  AWBA-CA7W
• Large Energy Pick-Ups Restore Twice As Much Energy
  SGAA-DAY0
• Makes Your Regular (Uncharged) Weapon Twice As Strong
  LWET-DLXT
• Makes Your Regular (Uncharged) Weapon 8 Times Stronger
  LWET-DCXT