Zipper

Zippers are red and yellow boosters that appeared in Diddy Kong Racing. They gave the player a boost if they make contact with it, with a larger boost available if the player lets go of the accelerator as they hit it.

Types of Zippers
There are 3 types of Zippers:
 * The Car Zipper is a flat panel on the ground.
 * The Plane Zipper is found in the air and is a circle shape. Trying to obtain a boost from an angle will result in lag, slowing down the racer rather than boosting the racer.
 * The Hovercraft Zipper is found on water and is a triangle shape vertex.

Technically, all three vehicles can obtain a boost from all three sorts of zipper - however, most plane and hovercraft zippers are located in places which make them inaccessible to cars, and it is very difficult to skim the ground in a plane so as to trigger a car zipper. Hovercraft, meanwhile, cannot reach most plane zippers, but can easily use car zippers; while planes can access hovercraft zippers with little difficulty.