Pocketgamer.co.uk has posted an interview with Tetsuya Mizuguchi. Mizuguchi is one of the busiest games designers. Just in terms of PSP games, he had Lumines II and Every Extend Extra playable at E3, while the Lumines universe continues to expand with Lumines mobile, Lumines Plus on PlayStation 2, and a version of Lumines for download on Xbox Live Arcade.
