The Tornado Top is a weapon only seen in Crash Nitro Kart. The tornado chases after the racer in first place and sucks them up. Any other racers caught up in it will be caught in a smaller tornado. When juiced up the tornado will move faster. It is much like the warp orb from Crash Team Racing.
"You can easily even the odds a little with this powerful item. When you release this super cyclone, it will immediately home in on whoever is in first place and catch his kart up in a mini tornado. Of course, anyone unlucky enough to get in its path on the way to its target will also get caught up in a tiny twister. You'll find this item only during race modes. Juiced - The top will go even faster than normal."