Jump at the right time to reach higher and do all the tricks you can! You have to bend your knees and extend them at the right moment to jump higher. Turn forward and backward by rolling over yourself or ellongating when it's necessary to regulate your rotating speed. A tutorial will teach you how to play.
Space bar to bend your knees; release it to extend them. To jump from the trampoline, first bend and then extend. Press the left arrow key to start a jump backwards, and release it to rotate: the more you keep it pressed, the faster you'll rotate. With the right arrow key you reach a similar effect, but with a jump forward. During the jump: to wrap, press the down arrow key; to join the arms to the body, press the up arrow key. Any of these two movements will make you rotate fast. A tutorial will guide you, lesson after lesson, but you can also try yourself.