The most useful power ups are probably the parachutes. For a jumping gorilla that can climb high into the treetops, a parachute is a good thing to have. Banana Kong Each time you jump you can use a parachute to glide across the jungle by tapping and holding your finger on the screen.
However, how far you glide is not controlled by how long you hold on to the screen, rather how good your chute is. The better the parachute, the longer the glide. You can choose from cheetah furs, treasure maps, even pirate flags and angel wings. Upgrading to a better parachute will definitely help you go farther on each run.