Ok guys im still kinda young in my collecting career but today i bought my first tengen carts. the first few worked fine but the last couple dont want to. i cleaned them with an alcohol soaked qtip but it didnt work. i tried to open it but the clips wouldnt budge i took the little torx screws out and all but they wouldnt open oh and i dont really know much about tengen could yall fill me in? thanx in advance.