| Filename | Type | Size |
|---|---|---|
| Nightmare Creatures (Europe) | Redump | 556.67 M |
| Nightmare Creatures (Germany) | Redump | 556.63 M |
| Nightmare Creatures (Japan) (Demo) | Redump | 54.82 M |
| Nightmare Creatures (Japan) | Redump | 582.59 M |
| Nightmare Creatures (USA) (Demo) | Redump | 113.82 M |
| Nightmare Creatures (USA) | Redump | 555.95 M |
| Nightmare Creatures (Europe) | CHD Format | 351.44 M |
| Nightmare Creatures (Germany) | CHD Format | 351.37 M |
| Nightmare Creatures (Japan) (Demo) | CHD Format | 48.79 M |
| Nightmare Creatures (Japan) | CHD Format | 389.01 M |
| Nightmare Creatures (USA) (Demo) | CHD Format | 72.33 M |
| Nightmare Creatures (USA) | CHD Format | 348.56 M |
