Listing all games similar to Darius II (E)

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
Gradius II »
[MAME] Vulcan Venture [NES] Gradius II (Japan)[MAME] Vulcan Venture (Old)[MAME] Vulcan Venture (Oldest)
Gradius III »
[MAME] Gradius III (Japan)[MAME] Gradius III (Asia)[MAME] Gradius III (World ?)[SNES] Gradius III (Japan)[SNES] Gradius III (USA)[MAME] Gradius III (Asia)[MAME] Gradius III (World ?)[MAME] Gradius III (Japan, program code S)
Border Down »
[MAME] Border Down (Rev A) (GDL-0023A)
Metal Black »
[MAME] Metal Black (Japan)[MAME] Metal Black (World)[Saturn] Metal Black (J)
Thunder Force III »
[Genesis] Thunder Force III (Japan, USA)
Thunder Force V: Perfect System »
[PSX] Thunder Force V - Perfect System [U][Saturn] Thunder Force V (J)[PSX2PSP] Thunder Force V - Perfect System (USA)
Gradius V »
[PS2] Gradius V (USA)[PS2] Gradius V (Japan)[PS2] Gradius V (Europe) (En,Fr,De,Es,It)
Salamander 2 »
[MAME] Salamander (version D)[MAME] Salamander (version J)[MAME] Salamander 2 (ver JAA)[MAME] Salamander (version J)[MAME] Salamander 2 (ver AAB)
Einhänder »
[PSX] Einhander [NTSC-U][PSX] Einhander (J)[PSX2PSP] Einhander (USA)