You know those "Save the Princess" games you see on Facebook and whatnot? This isn't quite like those, but it's similar. In this version, you use weights to raise and lower the platforms that your hero and the princess rely on to reach their doors and locks. For example, you might move your hero onto the platform, then add some weights to help him reach the button that unlocks the exit door for your princess. Then you need to move the princess onto the platform and add weights so she can reach the door.
As you progress along the levels, you'll find additional obstacles such as bears, tigers, a muscular guy who looks like he wants to beat you up, and others. Balance the scales so you can rescue the princess and save the day!