Gradius games in order

In release order

1. 
   Gradius1985 · rated 72
2. 
   Nemesis1985 · rated 80
3. 
   Gradius1986 · NES, 3DS, Wii U · rated 59
4. 
   Salamander1986 · rated 71
5. 
   Nemesis 21987 · Wii · rated 80
6. 
   Vulcan Venture1988 · PS3, PSP · rated 70
7. 
   Life Force1988 · NES, 3DS, Wii U · rated 75
8. 
   Gradius II1988 · Famicom, Wii · rated 64
9. 
   Gradius III1989 · rated 70
10. 
    Nemesis1990 · Game Boy · rated 74
11. 
    Gradius: The Interstellar Assault1991 · Game Boy · rated 69
12. 
    Gradius IV: Revival1999 · rated 52
13. 
    Gradius V2004 · PS2, PS3 · rated 80
14. 
    Gradius ReBirth2008 · Wii · rated 80
15. 
    Otomedius Excellent2011 · Xbox 360 · rated 80

Top rated

Nemesis 21987 · Wii80 ratingGradius V2004 · PS2, PS380 ratingLife Force1988 · NES, 3DS, Wii U75 ratingNemesis1990 · Game Boy74 ratingGradius198572 ratingSalamander198671 ratingVulcan Venture1988 · PS3, PSP70 ratingGradius III198970 rating