Goli Matsumoto is the character designer behind the Beatmania series of video games. I'm not exactly sure if he's done anything else (like manga) but I do know that I really like his designs.
Sometimes, when games are supposed to have a cool, funky feel, the characters are aesthetically pleasing but unattractive. That is certainly not the case here.
The scans in this post came from the great site Dokuganryu.
