Etrian Odyssey
He composed the main theme of the French TV channel "Nolife", which launched in 2007. The theme was released as part of the album "Tamiuta" in 2008. Some of Koshiro's latest work includes music for the "Etrian Odyssey" series, the "Wangan Midnight" series, and the "7th Dragon" series. He was also brought back to compose for "Streets of Rage 4" in 2020, along with Kawashima and several others.