On the English-language website for game developers Gamasutra, a Puzzle & Dragons video post with GDC 2014 has appeared.
We highly recommend watching it. It tells about what the Japanese mobile games market was like in 2011, how the gameplay of the game developed during development, and much more. The video can be found at this link.
We remind you that we published his retelling of the report in Russian a couple of months ago. It can be found here.
A source: http://www.gamasutra.com