My first 2600 is a four-switcher, and my second one a light 6 switcher..
The carts seat into the cart slot furthre on the 6 -switcher, and it doens't like a lot of Activision carts (sometimes you have to really push them way in there to get them to work. Imagic carts are really really tight too.. they barely fit
6 switcher doesn't like Activision carts new
