Centipede and Pong are the only "Non broken" classics.
Pong: One of the most primitive games you'll ever see. (And I thought that the wheel was primitive) It is basically like playing on a ping pong table. Two white rectangles are on both sides and they act as the paddles, as they move the dot around. If you've ever played ping pong, then you'll know what I'm talking about.
Centipede: A family classic. You are this one insect that fires at this huge centipede. The main objective is to shoot all the parts of the centipede to move on to the next level.
As far as the other games go, they are just broken. The movements are too sluggish and half the time, I didn't know how to play some of those games. Anyways, it's not really worth spending $30 dollars on such a ramshackle collection. If you truly want pong and Centipede, then be my guest and buy it. Otherwise, don't even bother.