Quote Originally Posted by Rob2600 View Post
Looks like a possible trapping error at the printer. Notice there are white lines in the big red Zelda on the normal cart (bottom), but the white lines aren't visible in the misprinted version (top).

That's just my educated guess.
When I look at the cart, the white is actually still there. It's just less pronounced and in some places and actually blends into black lines in other places to give sort of a shadow effect. It looks pretty intentional to me.