Hiroyuki Akiyama is a games composer. Akiyama has been working with Team NINJA and KOEI TECMO America. Akiyama's first published game was Ninja Gaiden: Dragon Sword released in 2008. After that, Hiroyuki Akiyama took part as the composer of Ninja Gaiden Sigma 2. Most recently, Hiroyuki Akiyama was involved in the development of Ninja Gaiden Sigma 2 Plus.