Sonic Team
Puyo Puyo!! 20th Anniversary

Where and when.
- 2011-07-14
- Date precision
- Exact date
- Platform
- Nintendo DS
- 2011-12-15
- Date precision
- Exact date
- Platform
- PlayStation Portable
- Market
- Japan
- 2011-12-15
- Date precision
- Exact date
- Platform
- Nintendo 3DS
- Market
- Japan
- 2011-12-15
- Date precision
- Exact date
- Platform
- Wii
- Market
- Japan
- 2011-12-15 · PlayStation Portable*
- Release date
- 2011-12-15*
- Date precision
- Exact date*
- Platform
- PlayStation Portable*
- 2011-07-14 · Nintendo DS*
- Release date
- 2011-07-14*
- Date precision
- Exact date*
- Platform
- Nintendo DS*
- 2011-12-15 · Nintendo 3DS*
- Release date
- 2011-12-15*
- Date precision
- Exact date*
- Platform
- Nintendo 3DS*
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* Provisional data