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