| 2024-07-16 19:56:46 | Brittle | Updated Ninja's membership of Haujobb: set as ex-member |
| 2024-07-16 19:56:41 | Brittle | Updated Ninja's membership of Anthrox: set as ex-member |
| 2023-06-21 04:48:50 | menace | Added credit for Ninja on Space Crusade: Graphics (logo) |
| 2022-08-14 12:25:16 | menace | Updated Ninja's membership of Abandon: set as ex-member |
| 2021-04-12 16:30:33 | 100bit | Added credit for Ninja on Ninja in Space - Preview: Graphics (logo) |
| 2021-04-12 16:27:47 | 100bit | Added credit for Ninja on Crystal Kingdom Dizzy Preview: Graphics (logo) |
| 2021-01-17 15:59:54 | dipswitch | Added Ninja as organiser of Spessart Conference 1.0 |
| 2020-02-04 06:40:10 | menace | Deleted link http://www.mobygames.com/developer/sheet/view/developerId,193412/ |
| 2020-02-04 06:39:55 | menace | Edited notes |
| 2019-07-06 06:23:38 | menace | Added credit for Ninja on Super Solitaire: Graphics (logo) |
| 2019-02-03 13:58:12 | 100bit | Updated Ninja's credit on Metal Law: Graphics |
| 2018-05-05 13:49:43 | exocet | Added link http://www.mobygames.com/developer/sheet/view/developerId,193412/ |
| 2018-05-05 10:01:56 | exocet | Edited notes |
| 2018-05-05 08:56:25 | rmd | Added link http://janeway.exotica.org.uk/author.php?id=938 |
| 2014-05-30 21:26:52 | menace | Updated visibility of real name |
| 2014-05-30 21:13:17 | menace | Added credit for Ninja on Melodees For Millions: Graphics |
| 2014-05-30 21:05:15 | menace | Updated Ninja's membership of Dual Crew Shining: changed group to Dual Crew Shining, set as ex-member |
| 2014-05-30 21:05:12 | menace | Updated Ninja's membership of Awesome: changed group to Awesome, set as ex-member |
| 2014-05-30 21:05:07 | menace | Updated Ninja's membership of Dual Crew: changed group to Dual Crew, set as ex-member |
| 2014-05-30 21:05:01 | menace | Edited notes |
| 2014-03-12 20:31:07 | menace | Set location to Partenstein, Regierungsbezirk Unterfranken, Bavaria, Germany |
| 2014-03-12 20:30:56 | menace | Updated visibility of real name |
| 2014-03-12 20:27:02 | menace | Added credit for Ninja on Lemo: Graphics |
| 2013-10-14 21:37:17 | dipswitch | Added credit for Ninja on Chromagic: Graphics |