The only embossed text I've ever seen is on a NA Turtles in Time cart, and I think it was Evan that said it's only been seen on Majesco carts (and upon opening the cart, indeed it is a Majesco).
Though I have a couple other Majesco carts with normal sticker labels (hard to tell if they're cart only, it's easier to spot a CIB because the manuals were fully B&W and the boxes only mentioned Majesco in the copyright info on the back).