The following are known Game Genie Codes for NBA All-Star Challenge on Super Nintendo (SNES).

• Player 1 Can’t Score In The One-On-One, Free Throw Or Tournament Stages
  123B-3F0D
• Player 2 Or Computer Can’t Score In The One-On-One, Free Throw Or Tournament Events
  A238-340D
• Player 1 Can’t Score In 3-Point Shootout
  A239-1F0D
  A237-176D
• Player 2 Or Computer Can’t Score In 3-Point Shootout
  A23F-176D
  A23D-1FAD

Note: The rest of the codes work on the 1-on-1 and 1-on-1 Tournament Modes only.

• Stop Shot Clock
  A2C6-3F07
  6DC6-3DA7
• 12-Second Shot Clock
  DFC3-34D7
  D4C3-3DA7
• 48-Second Shot Clock (After The 1st Shot)
  D0C3-34D7
  D6C3-3DA7