Originally Posted by
portnoyd
Print runs are generally trade secrets unless the beans are spilt on an individual basis. The general school of thought, assuming no store exclusivity (advertised or assumed):
1- Only online/not even in Gamestop: Typically small
2- In Gamestop only: Medium
3- Big box stores (Walmart, Best Buy, etc): Large
Only #1 is worth noting. Anything more than that these days is common enough to never be a rare game. Keep in mind, the game can be popular in a #2 situation and the copies will be hard to come by.
To answer your question, probably the same as the Wii version. If you found it in Walmart, it's possible that it is a larger run than the PSX version.