For your consideration, here is the Game Boy Color The Wild Thornberrys Rambler Game Cartridge, complete with box, instruction manual, plus storage case, no. CGB-P-BWTE, from Mattel Interactive.  The box has a little wear on the corners. The cartridge and instructions look brand new.   The instruction booklet has a small curve in a back cover corner, not creased.  Item pictured is the actual item up for sale and comes from a non-smoking household. (151.268a-.7bb)