I just picked up a used Tony Hawk Project 8 for Xbox 360 and noticed on the way home that the cover insert has a printed (not a sticker) "Bonus Inside - Collectible Tips & Tricks Cards" graphic and there are indeed some cards inside.
A quick glance at eBay didn't show any copies for sale with this cover. What is this? Was it the first batch? Only at a certain retailer? Thanks.