I've seen several versions of this cute platformer, but this one is one of the best. The Atari 5200 version has all 4 game screens. The task is to lead a mother kangaroo to her cub. The authors are aware that kangaroos zealously look after their children. Their further education was replenished with television programs, where kangaroos put on gloves and let them out against boxers in the ring. In the missing part of the plot, they placed monkeys throwing apples. Where they (and apples) came from in Australia is unclear. Gastarbeiters probably, or lost tourists.
The graphics are almost as good as the arcade version, and the animation is smooth. I recommend to try.