Without any aim to be comprehensive, this article will follow these developments and focus on two shows: 1974’s Hurricane Polymar and 1976’s Gowapper 5 Godam. Although very different, both works are good examples of Tatsunoko’s development in the middle of the 70s: in terms of staff, the studio increasingly opened itself to the rest of the industry, but in terms of inventivity, it was rather closing. This contributed to the formation of an instantly-recognizable Tatsunoko aesthetic and brand, but also entailed a diminishing creativity, further decreased by the series of exodus that went on in those years.