Listing all games similar to Silpheed (1988)(Sierra Online)

Sol-Feace »
[Genesis] Sol-Deace (USA)[X68K] Sol-Feace (1990)(Wolf Team)(Disk 1 of 3)[a][X68K] Sol-Feace (1990)(Wolf Team)(Disk 1 of 3)[X68K] Sol-Feace (1990)(Wolf Team)(Disk 2 of 3)[a][X68K] Sol-Feace (1990)(Wolf Team)(Disk 2 of 3)[X68K] Sol-Feace (1990)(Wolf Team)(Disk 3 of 3)[a2][X68K] Sol-Feace (1990)(Wolf Team)(Disk 3 of 3)[a][X68K] Sol-Feace (1990)(Wolf Team)(Disk 3 of 3)[SegaCD] Sol-Feace (U)[SegaCD] Sol-Feace (Europe)
Thexder »
[Amiga] Thexder [NES] Thexder (Japan)[Apple2] Thexder (1987)(Synergistic)(Disk 1 of 2)[Apple2] Thexder (1987)(Synergistic)(Disk 2 of 2)[DOS] Thexder (1987)(Sierra Online)
Shadow Squadron »
[32X] Shadow Squadron (32X)
Gradius »
[MAME] Gradius [MAME] Nemesis [MAME] Nemesis (World?)[MAME] Gradius (PlayChoice-10, older)[MAME] Gradius (PlayChoice-10)[NES] Gradius (ArchiMENdes Hen) (Japan)[NES] Gradius (Europe)[NES] Gradius (Japan)[NES] Gradius (USA)[X68K] Gradius (1987)(Sharp - SPS)[a2][X68K] Gradius (1987)(Sharp - SPS)[a3][X68K] Gradius (1987)(Sharp - SPS)[a4][X68K] Gradius (1987)(Sharp - SPS)[a][X68K] Gradius (1987)(Sharp - SPS)[h2][X68K] Gradius (1987)(Sharp - SPS)[h3][X68K] Gradius (1987)(Sharp - SPS)[h][X68K] Gradius (1987)(Sharp - SPS)[TG16] Gradius (Japan)[C64 PP] Gradius (U)[MAME] Nemesis (World?)[MAME] Nemesis