What does holographic code on Wii Games means

[DawnSet]

I had seen a number of time those holographic code on wii games. My friend has purchase a similar bundle and all those code were common. Is there any specific importance of those code. I got a guy who was selling Wii games and those holographic code were not on that. Should I purchase those.

[Gaganvihari]

That can be some kind of code used to differential games as per region. I am not sure what they actually are. But they might define the game authenticity. You have seen such type of holographic codes on many different products. I will not recommend you to go for those game, they might be pirated. You must purchase those only from official vendor or simply order online.