I recently traded someone for a copy of Mr. Driller A, a game that I've been wanting for a while, for Super Monkey Ball Jr. My game was complete; his was cart only. I didn't really care as I wanted the game to play. So, I got Mr. Driller the other day. The label looked a tiny bit printed off-center, and was a little bit fuzzy. And the cartridge was made out of a diiferent-colored, different-textured platic. I already had an import GBA game that I bought in-person in March of 2001 (Yes, it was before I even had a GBA). I didn't bother to compare to compare the two as I thought that the plastics had probably changed since the original launch GBA game production runs. When I put the game in my GBASP, it didn't completely fit in the cart slot. But the game plays fine.
So fast forward a few days. I was still suspecting this cart to be a pirate. I couldn't find ANYTHING proving that the cart was a pirate, though. So I flipped the cartridge over... to see not the word "Nintendo" in the normal oval logo, but the word "Nintondo." The moral of the story? Never get import GBA games without seeing a picture of the back of the cart. Lckily, I don't mind this being a pirate as I got it to play.