With this script, CJ can call himself "VORTEX" or as it is also called "Air Cushion". In order to call "VORTEX" during the game (if you are not in the car) press "Y". The script works, regardless of whether CJ is on land or on water, i.e. you can call an "air cushion" both on land and on the water surface.
P.S. This script has another interesting feature: "If you stand near some car and press Y, then the car in front of which you stood will disappear (even if people are sitting in it), and on VORTEX"will appear in its place!