Arata Iiyoshi (飯吉 新, Iiyoshi Arata), also known as S.S.D.FANTASICA, is a freelancer composer. He has contributed music as a video game music composer for the Bemani division, but also video games published by Nintendo such as the Super Smash Bros. series, or developed by Chunsoft like the Pokémon crossover of the Mystery Dungeon franchise and the Kamaitachi no Yoru series.