Each point is one game's rating·dashed lines show each series' overall trend
Games on the chart (6)
| Galaxian | Sep 15, 1979 | Main Game | 90 | 74 | 82 |
| Galaga | Sep 1, 1981 | Main Game | 70 | 73 | 71 |
 Gaplus | Apr 1, 1984 | Main Game | – | 60 | 60 |
| Galaga '88 | Dec 1, 1987 | Main Game | – | 76 | 76 |
 Galaga Legions | Aug 20, 2008 | Main Game | 66 | – | 66 |
 Galaga Legions DX | Jun 29, 2011 | Main Game | 71 | 76 | 74 |