Sega Master System · cheat codes
Basketball Nightmare cheats & codes
6 codes for Basketball Nightmare on the Sega Master System, including Action Replay codes.
Basketball Nightmare Action Replay codes
How to use: Datel's Action Replay sat between the console and the game. Enter codes on its menu before starting the game, or paste them into your emulator's cheat menu.
| Effect | Code |
|---|---|
| P1/CPU Has High Score | 00C0-32FF |
| P2/CPU's Team Never Scores | 00C0-3300 |
| Round Number Modifier (Replace ? With 0-5) | 00C0-340? |
Basketball Nightmare Other codes
How to use: Additional codes collected by the community. Enter them through your emulator's cheat menu, choosing the format that matches your emulator.
| Effect | Code |
|---|---|
| Round Number Modifier [Replace ? With 0-5] | 00C0-3400 |
| P1/CPU Has High Score | 00C0-32FF |
| P2/CPU's Team Never Scores | 00C0-3300 |
Using cheats today
Original cheat devices like the Game Genie, Action Replay and GameShark still turn up second-hand and work with original cartridges. Most modern emulators also have a built-in cheat menu that accepts these formats, so you can toggle codes on and off without extra hardware. Codes can differ between regional releases and revisions of a game; if one doesn't work, try the code list for another version.
Cheats can corrupt save files in rare cases, so back up your saves before experimenting.
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Cheat codes are from the libretro-database community collection, used under CC BY-SA 4.0; the code tables on this page are shared under the same license. Codes are provided as-is: some may not work on every version of the game.