The promo is the retail Biohazard 2 (Dual Shock Ver.) Disc 1 put in a standard jewelcase with a custom front insert. It seems to have been sent to shops together with a display set.
2. Back of front insert
4. Display set
5. Display set packed in plastic
6. Front of instructions sheet
7. Back of instructions sheet
Thanks to Yahoo! Japan Auctions member nkgood87 (images 1-7).