“This time, Sonic Lost World is a title that only released on Nintendo hardware, which is an opportunity that I couldn’t believe, collaborating together. This time, the appearance is interesting, as combining Sonic into such a world is extremely foreign, and I wanted to aim at the unexpected.
There has been much mix and collaboration of Mario and Sonic in the “Mario & Sonic” series, and they have parts that resemble both games. There was also the idea that the combination of the two might not be that interesting to the audience.
In normal production, the hardest part is building up the base of the game. Stages can normally be changed simply by variations, but this time, it was shaped to be a different experience on each stage [of the DLC], which is why it took so long to complete. It’s easy for Yoshi to be in Sonic Lost World, but the music, sound, and soundtrack of “The Legend of Zelda” made the development all the more entertaining and fun. I now feel like I want to make more, rather than just simply one zone. (Laughs)"
Turns out each stage took about 3 months to develop, and Iizuka originally wanted to have these stages included in the retail release. The schedule got too busy, so the levels ended up as DLC.
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