Swing land is a game where you are on a swing and you let go at just the right time to navigate through a maze of swings. You can stand, sit, and lie down on the swing, and perhaps even suspend using your legs trapeze style. The idea being that those simple gravitational arcs are pleasing to the eye, so we design levels to have those.
In the later levels you can also increase or decrease the swing velocity, but that might be hard. Perhaps there’s a “playground mode” where you can see how high and far you can get.