Product Principle:

Shaking the handle causes the gears to rotate. One of the gears has a crank arm connected to the rocket to be launched. This converts the rotational motion of the gear into reciprocating motion of the rocket. The up-and-down motion of the rocket is controlled, so the rocket can only move in the vertical direction.

Gameplay Points:

Observe the changes in the rotation speed of the three gears and the relationship between the number of teeth and rotational speed. Note that the middle gear has a crank arm connected to the rocket. Pay attention to how the rotational motion of the gear is converted into the reciprocating motion of the rocket.