| Software list: | Sega Master System cartridges (sms) |
|---|---|
| Short name: | heavyw |
| Year: | 1991 |
| Publisher: | Sega |
| Supported: | Yes |
| serial: | 7063 |
| Short name | Description | Year | Publisher | Supported |
|---|---|---|---|---|
| jbdougko | James 'Buster' Douglas Knockout Boxing (USA) | 1990 | Sega | Yes |
| jbdougkop | James 'Buster' Douglas Knockout Boxing (USA, prototype) | 1990 | Sega | Yes |
| Short name: | cart |
|---|---|
| Interface: | sms_cart |