The full-game promo was probably sent to gaming stores. The game is identical to the retail edition, only with a promotional sticker on the front insert. Some similar promos of other games came with promotional text printed around the spindle hole, but these did not.
A sealed copy has also been seen with the promotional sticker placed under the plastic wrapping.
1. Front with sticker
2. Back
3. Disc
4. Front of manual
5. Back of manual