His songs are known for having dark subjects paired with upbeat music. His use of unique instrumental textures, harmonies, and sound effects, along with a high level of attention to detail, gives his music a singular sound. He recently started making more dubstep-esque songs while keeping the same style of lyrics.

He mainly uses Hatsune Miku in his VOCALOID songs, but he has recently used IA as well. Kikuo also made one of the demo songs for Tone Rion.