Konami
Gradius

Where and when.
- 1985-05-29
- Date precision
- Exact date
- Platform
- arcade video game machine
- 1985-05-29
- Date precision
- Exact date
- Platform
- MSX
- 1986
- Date precision
- Year only
- Platform
- NEC PC-8800 series
- 1986
- Date precision
- Year only
- Platform
- Nintendo Entertainment System
- 1986-04-25
- Date precision
- Exact date
- Platform
- Nintendo Entertainment System
- Market
- Japan
- 1986-12
- Date precision
- Month
- Platform
- Nintendo Entertainment System
- Market
- North America
- 1987
- Date precision
- Year only
- Platform
- Sharp X68000
- 1987
- Date precision
- Year only
- Platform
- ZX Spectrum
- 1987
- Date precision
- Year only
- Platform
- Amstrad CPC
- 1987
- Date precision
- Year only
- Platform
- Commodore 64
- 1988-11-30
- Date precision
- Exact date
- Platform
- Nintendo Entertainment System
- Market
- Sweden
- 1988-11-30
- Date precision
- Exact date
- Platform
- Nintendo Entertainment System
- Market
- Europe
- 1991
- Date precision
- Year only
- Platform
- TurboGrafx-16
- 1986-12 · Nintendo Entertainment System · Europe*
- Release date
- 1986-12*
- Date precision
- Month*
- Platform
- Nintendo Entertainment System*
- Market
- Europe*
- 1986-12 · Nintendo Entertainment System · Japan*
- Release date
- 1986-12*
- Date precision
- Month*
- Platform
- Nintendo Entertainment System*
- Market
- Japan*
- 1991-11-15 · TurboGrafx-16 · Japan*
- Release date
- 1991-11-15*
- Date precision
- Exact date*
- Platform
- TurboGrafx-16*
- Market
- Japan*
- 1986-12 · Nintendo Entertainment System · USA*
- Release date
- 1986-12*
- Date precision
- Month*
- Platform
- Nintendo Entertainment System*
- Market
- USA*
- 1985-05-29 · Arcade*
- Release date
- 1985-05-29*
- Date precision
- Exact date*
- Platform
- Arcade*
- 1986-04-25 · Nintendo Entertainment System*
- Release date
- 1986-04-25*
- Date precision
- Exact date*
- Platform
- Nintendo Entertainment System*
- 1986 · Commodore 64*
- Release date
- 1986*
- Date precision
- Year only*
- Platform
- Commodore 64*
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* Provisional data