| 2023-09-10 06:27:26 | menace | Added credit for Gradius on Grapevine 13: Graphics |
| 2020-07-29 06:50:22 | menace | Added credit for Gradius on Happy Monster +6 Micro-Trainer: Code (intro, trainer), Text |
| 2020-07-29 06:48:07 | menace | Added credit for Gradius on Defender (Arcade) +10: Code (intro, trainer), Text |
| 2020-04-30 03:28:19 | menace | Added Gradius as a member of Apocalypse |
| 2020-04-30 03:28:12 | menace | Set location to United Kingdom |
| 2020-04-29 06:49:07 | menace | Added credit for Gradius on Zeewolf +18: Code (trainer) |
| 2014-01-18 18:29:41 | menace | Added Gradius as a member of Anthrox |
| 2014-01-18 18:29:02 | menace | Added credit for Gradius on Kid Chaos +12: Code (trainer) |