Can anyone help me out please?

I try to get hold of rare and obscure pcb's and Riot City by Sega was one of the games I've been after for a while.

I ordered the board from two different supplier and now I've got 2! (both original Jap versions).

I've also had a weird bootleg version at some point with strange cut and loop music.

Just wondering if anyone knows if this game had an official US or Worldwide release?

I've only ever seen the Japanese board and roms.

I'd also like to know if the game was originally sold as a dedicated cabinet or conversion kit?

Finally, does anyone know of any existing artwork, operator's manual or marquee etc?

Please help if you can!

Cheers