From the box top: "A hands & knees fast action game with mini head-sticks." Yes, that's right "mini head-sticks" not the large ones found in most other games.
This is a race game in which you push a small car around a course with the "mini head-stick" while on your hands and knees. The game includes 4 mini head sticks, 4 course markers, and 4 cars. The course markers can be set up in different track configurations.
I'm not sure where the monkeys fit into this.