Caverns of Mars

The Good
Caverns is basically Scramble. As it is somewhat easier to do vertical scrolling than horizontal on the Atari, the game rotated the motion from scrolling to the left to scrolling upward. The game was also less advanced in terms of action - the rockets didn't fire upward for instance, but simply sat on the ground.

In spite of this, the game simply worked. Getting to the bottom was a challenge and escaping added a wrinkle to the gameplay that Scramble lacked. It was good for hours of fun.

The Bad
The lack of moving targets was annoying.

The Bottom Line
A basic Scramble clone, and lots of fun.