Bandai America Inc. was established as local US sales/marketing operation in 1978. Spacewarp, a line of build-it-yourself toy rolling ball "roller coasters" was introduced by Bandai in the 1980s.

In May 1980, Makoto Yamashina, son of the founder, became president of Bandai. Naoharu Yamashina became chairman of the board. Upon his arrival, Makoto Yamashina completely changed the ageing staff of Bandai and replaced them with younger employees with the intent of not only bringing new ideas, but