The Japanese edition came with a manual, an online survey card, an advertisement for the other Wii titles, a Club Nintendo card, and a Wii instructions sheet.
1. Front
2. Back
3. Disc
4. Front of manual
5. Back of manual
6. Wii titles advertisement
7. Survey card
8. Front of Wii instructions sheet
9. Back of Wii instructions sheet
10. Club Nintendo card
Thanks to Bigmanjapan (images 3-9) and Nakian (image 10).