The following are known Action Replay Codes for NBA All-Star Challenge on SEGA Genesis / Mega Drive (Genesis).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay

• Infinite Ball Possession Time
  FF90CD:FF
• Infinite Time (Seconds – Ones Digit)
  FF90C8:09
• Infinite Time (Seconds – Tens Digit)
  FF90C7:09
• Infinite Time (“:” Digit)
  FF90C6:09
• Infinite Time (Thousands Digit)
  FF90C5:09
• Infinite Time (Ten Thousands Digit)
  FF90C4:09
• Team 1 Score Modifier (P1)
  FF90BE:XX
• Team 2 Score Modifier (P2/CPU)
  FF90CB:XX