The hack makes the game look and sound more like the arcade version.
Fusaru originally released a hack to make the game look more like the arcade version. The readme file of Fusaru’s hack requested a music sound fix. By request this hack slows down the music speed to be more like the arcade version when played in 60Hz NTSC mode. It continues what was started by Fusaru. Thus, all the graphic improvements done by Fusaru are incorporated with the sound fix to make the game even more close to the arcade version.
