Konami · Ultra*
Block Hole

Where and when.
- 1990-03-16
- Date precision
- Exact date
- 1990-04-13
- Date precision
- Exact date
- Platform
- Nintendo Entertainment System
- Market
- Japan
- 1990-12 · Game Boy · Japan*
- Release date
- 1990-12*
- Date precision
- Month*
- Platform
- Game Boy*
- Market
- Japan*
- 1990-03-09 · MSX2 · Korea*
- Release date
- 1990-03-09*
- Date precision
- Exact date*
- Platform
- MSX2*
- Market
- Korea*
- 1990-12 · Game Boy · Europe*
- Release date
- 1990-12*
- Date precision
- Month*
- Platform
- Game Boy*
- Market
- Europe*
- 1990-03-09 · MSX2 · Japan*
- Release date
- 1990-03-09*
- Date precision
- Exact date*
- Platform
- MSX2*
- Market
- Japan*
- 1990-04-13 · Nintendo Entertainment System · Japan*
- Release date
- 1990-04-13*
- Date precision
- Exact date*
- Platform
- Nintendo Entertainment System*
- Market
- Japan*
- 1990-12 · Game Boy · USA*
- Release date
- 1990-12*
- Date precision
- Month*
- Platform
- Game Boy*
- Market
- USA*
- 1990-03-16 · Game Boy*
- Release date
- 1990-03-16*
- Date precision
- Exact date*
- Platform
- Game Boy*
- 1990 · MSX2*
- Release date
- 1990*
- Date precision
- Year only*
- Platform
- MSX2*
- 1990-04-13 · Nintendo Entertainment System*
- Release date
- 1990-04-13*
- Date precision
- Exact date*
- Platform
- Nintendo Entertainment System*
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* Provisional data