The Japanese first edition came with a manual, a Biohazard II: Apocalypse UMD flyer, and a survey/ registration card.
One out of four metal guns was given to people who pre-ordered the game. The gun came in a small, sealed box together with a card corresponding to the particular gun.
1. Front
2. Back
3. Disc
4. Front of manual
5. Back of manual
6. Apocalypse flyer
7. Survey/ registration card
8. Front of box for metal gun
9. Back of box for metal gun
10. Opened box with gun
11. Gun and gun card
Thanks to CDcovers.cc (images 1, 3), GameFAQs user Starwolf_UK (image 2), Bigmanjapan (images 4-5, 7), Skunky (image 6), and Play-Asia (images 10-11).