An excellent reassembly in 68000 from the arcade source code, the sound driver is not compatible with the XVI with 16mhz clock. A patch exist to make it work in 16mhz mode.
The game use the same protection as the New Zealand Story :
Disk protection Track 77.0 side 1.jpg
Disk protection Track 76.1-77.1 side 2.jpg
The Sector F5 is the protected sector, all the others are normal ones.
Disk B is not protected.