The following are known Action Replay Codes for NBA Showdown on Super Nintendo (SNES).

These codes are for the U.S. version of the game.

• No Personal Fouls for Both Teams
  82EC9BAD
• 3 Time-Outs
  83F16203
• 1-Minute Quarters
  86FB0B01
• Computer: Infinite Shot Clock
  80D444AD
• Infinite Time
  80D823AD
• Infinite Time-Outs
  80E156AD
• Player 1: 12-Second Shot Clock When Ball Is In-Bounded
  80E5190C
  83933C0C
  83F1EB0C
• Computer: 12-Second Shot Clock When Ball Is In-Bounded
  828CFC0C
  82B6200C
  83F1EB0C