Each point is one game's rating·dashed lines show each series' overall trend
Games on the chart (14)
| Contra | Feb 1, 1987 | Main Game | 50 | 80 | 65 |
| Super Contra | Jan 8, 1988 | Main Game | 58 | 74 | 66 |
 Operation C | Jan 8, 1991 | Main Game | – | 77 | 77 |
| Contra III: The Alien Wars | Feb 28, 1992 | Main Game | – | 81 | 81 |
 Contra Force | Sep 30, 1992 | Main Game | – | 71 | 71 |
 Contra: Hard Corps | Aug 8, 1994 | Main Game | – | 87 | 87 |
 Contra: Legacy of War | Nov 29, 1996 | Main Game | – | 59 | 59 |
 C: The Contra Adventure | Oct 1, 1998 | Main Game | – | 60 | 60 |
 Contra: Shattered Soldier | Nov 22, 2002 | Main Game | 40 | 80 | 60 |
 Neo Contra | Nov 19, 2004 | Main Game | 78 | 80 | 79 |
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