| Short name | Description | Year | Manufacturer | Runnable | Parent |
|---|---|---|---|---|---|
| gradius3 | Gradius III (World, program code R) | 1989 | Konami | Yes | |
| gradius3a | Gradius III (Asia) | 1989 | Konami | Yes | gradius3 |
| gradius3j | Gradius III (Japan, program code S) | 1989 | Konami | Yes | gradius3 |
| gradius3js | Gradius III (Japan, program code S, split) | 1989 | Konami | Yes | gradius3 |