The following are known Game Genie Codes for NBA Showdown on Super Nintendo (SNES).

• No Personal Fouls (Both Teams)
  C23B 44A8
• 12-Seconds Shot Clock When Ball Is In-Bounded (Player 1)
  DAE3 14AA
  DAB7 37DA
  DA3F 140F
• 12-Seconds Shot Clock When Ball Is In-Bounded (Computer)
  DAE3 14AA
  DA6E 47D8
  DA84 CDDB
• Infinite Shot Clock (Computer)
  C220 4FDF
• Infinite Time
  C224 4DA4
• 1 Minute Quarters
  DFED 342C
• 3 Time-Outs
  D7E1 1D6A
• Infinite Time-Outs
  C239 1F6D