Mr. Cool

A Q-bert arcade clone. You as a cube jump on the pyramid built with color-changing platforms. You have to make all platforms of the same color, but the flying comets disturb you. But if the comets became the balls then cube can collect them painlessly.

This game was never released as an official Atari 5200 cartridge but was a conversion from the 8-bit Atari computer cartridge released in 1983 by Sierra On-Line.