渡辺明夫
Petit Ferret developed "Popotan" in 2002. Seki Hayabusa and Iwashinichi Shimizu handled scenario development, and Akio Watanabe designed its characters while working under the alias Poyoyon♥Rock. Higuchi Hideki and Kajihara Masahiro composed music for the series; Under17 contributed theme music with vocals. Petite Ferret created over 1,000 two-dimensional computer graphics for backgrounds, events, and character poses. Though only characters' mouths and eyes are animated, numerous poses exist for both major and minor characters; Petit Ferret created slightly fewer graphics for the latter to reduce production costs. The game uses a character placement system to display the characters relative to the protagonist; distant characters appear small, and grow larger as the player approaches them.