Board Thread:Questions and Answers/@comment-12776-20140908185119

FYI, Haitai Nanafa is short anime from 2012.

For whatever reason, the studio behind it work in collaboration with Tsuburaya to creat an episode featuring Ultra Kaijuu Gijinka Keikaku girls (albeit with different design).

http://www.youtube.com/watch?v=QMShtd9erI4 