Which 5200 games have exactly the same game plan like the 800 titles?

[Mangia-Boy]

Qix, Space Invaders and Centipede is easy, they are very different.

Moon Patrol is in my opinion the same one.

But how about some others,

Galaxian, PacMan, Ms.PacMan, Pengo, Robotron 2084, Missile Command, Q-Bert, Popeye, Zaxxon