Oz The Groove is a bit unique among Oz series.
He is the only robot has no horns, which is symbolized strength and pride. Instead of horns, he is wearing headphone and dance with the music. I made the base like a disco ball, or at least tried to have disco feel to it.
I wanted to make a robot that is happy, yet deadly, and I thought what other weapon is more deadly than a katana?
I kind of like the contrast between happy music and dancing with the deadly katana.
Also this is the only piece that contains the music so it's a bit more unique in the series.