Houkago Colorful * Step: Undoubu! is an otome game, developed and published by honeybee+, which was released in Japan in 2014.
Starry Sky: in Summer Portable is a port of Starry Sky: in Summer for the PlayStation Portable.
S.Y.K: Renshouden Portable is a port of S.Y.K: Renshouden for PlayStation Portable.