Ryoji Yoshitomi is a sound programmer who works for Nintendo. Initially working on the R&D1 department, he would be in charge of music and sound effects composition for several Game Boy and Game Boy Advance games, mostly on the Wario franchise. Years later, Yoshitomi would move to Nintendo EAD Kyoto, a position in which he would be in charge of sound effects and programming on several games, although he hasn't composed any new music ever since.