| Number | SW Versions | Description |
| 101-109 | 4.1, 4.3, 4.5 | Lock or unlock the unit; one of these can be set as the 'lockout code' (in the setup/243zone dialog); it will unlock. The others lock. |
| 111 | 3.0, 4.1, 4.3, 4.5, 5.0 | Show 'debug' (games) screen; disabled in demo mode, or if it hasn't been enabled with JOSHUA (4.1)/TIC TAC TOE (3.0) clawfoot command. (5.0 adds a fourth game, Othello.) |
| 116 | 3.0, 4.1, 4.3, 4.5 | If used immediately following 611, show technical service screen (country/replayzone prefix); disabled in demo mode. |
| 243 | 3.0, 4.1, 4.3, 4.5, 5.0 | Show utilities screen; disabled in demo mode. |
| 255 | 3.1?, 4.1, 4.3, 4.5 | Do something related to PPV authorization; disabled if PPV authorization isn't enabled. |
| 382 | 4.3 (230), 4.5 | Show 'demo mode settings' dialog -- can do a factory reset. |
| 411 | 3.0, 4.1, 4.3, 4.5, 5.0 | Show information screen. |
| 611 | 3.0, 4.1, 4.3, 4.5 | Set flag enabling 116 ZONE to work. |
| 746 | 3.1?, 4.1, 4.3, 4.5 | Show dialogue allowing you to clear the PPV PIN; disabled if PPV authorization isn't enabled. |
| 777 | 3.0, 4.1, 4.3 (180) | Show 'demo mode settings' dialog -- can do a factory reset. |
| 876 | 3.0, 4.1 | Reset Service activation - force network reconfig soon. |
| 911 | 4.1, 4.3, 4.5 | Do nothing at all. |
| 999 | 4.1, 4.3, 4.5, 5.0 | Show a mockup of an Internet Video Sharing diagnostics & logging screen -- As LeeThompson pointed out, the text is hardcoded. |