Gradius
Arcade
1985
NES
1986
Sharp X68000
1987
Gradius Gaiden
PlayStation
1997
Gradius II
1988
Gradius II: Gofer no Yabou
PC Engine CD
1992
Gradius III
SNES
1990
Gradius IV
1999
Gradius V
PlayStation 2
2004
Life Force
Nemesis
MSX
Nemesis 2
Salamander
PC Engine
1991