| 2022-01-22 17:36:40 | FlashyLamer | Added credit for Marvin on Chop: Code |
| 2021-01-15 17:29:13 | FlashyLamer | Added credit for Marvin on Phlubby Gnome: Code |
| 2020-02-04 06:07:26 | menace | Deleted link http://www.mobygames.com/developer/sheet/view/developerId,160556/ |
| 2020-02-04 06:07:22 | menace | Edited notes |
| 2020-01-13 19:44:31 | Brittle | Added link http://www.mobygames.com/developer/sheet/view/developerId,160556/ |
| 2020-01-13 19:42:23 | Brittle | Set location to Seattle, King County, Washington, United States |
| 2020-01-13 19:42:09 | Brittle | Set real name |
| 2019-08-22 20:04:29 | superogue | Added Marvin as a member of Trepaan |
| 2016-04-01 22:30:59 | exocet | Added credit for Marvin on Bulll!: Code |
| 2015-01-11 05:53:12 | menace | Added Marvin as a member of Jinx |
| 2015-01-11 05:53:04 | menace | Added credit for Marvin on Happiness: Code |