I have two Mario Bros. carts and a pole position II cart, but they are Holey Moley, Quadrun, and Bionic break through. They have an Atari warning label over the screw hole stating that warranty will be void if moved, and they are heavy. See pic.
Are these just some common copies made by someone? If so where (Best Electronics)?
If someone could school me on these I would really appreciate it.
Thank you,
Chris