There's always another generation between each one that experiences like half of each in their childhood. That being said, generation has always been an odd way to categorise, in reality it's much more fluid as to what people encounter.
Nope, Pong was a Gen X thing. I know because my Mom bought us one when I was a kid. We were so excited, for all of an hour. Turns out that hitting a square (Yes, it wasn't even a ball.) back and forth across your TV screen wasn't all that exciting. But, now thinking back, it turns out that Pong wasn't an exciting gift from my Mom, but the fact that she was willing to buy it for us because she knew we wanted it, when she was a single working parent raising 4 sons by herself and scrimping to save pennies wherever she could, gives me an appreciation for her that I cherish far more.