The first water gun in the Super Soaker line to use a fundamentally different way of propelling water than the first guns. Improvements up to this time had essentially been evolutionary in nature, allowing for higher capacity, slightly better range, and a few novelties like variable nozzle size. The first revolution since the original Super Soaker was the so-called "CPS", Constant Pressure System, that claimed to provide a stream of water that didn't peter out as internal air pressure decreased. The first gun to use this system was the Super Soaker 2000, the biggest, most phallic super soaker at the time

I was frankly skeptical of the gun's ability to deliver on its advertising; although I'd had many Super Soakers before, and all of them (except for the 200, which was crap) basically worked as advertised. Still, my curiosity was overcome, and I plunked down the 30+ dollars to buy the thing.

Upon inspection, it seemed that either it would be the most fearsome water weapon short of a hose, or it would suck. The nozzle was roughly half an inch wide. I filled it up and pumped it up to full pressure as indicated by the pressure gauge on the side. I pulled the trigger.

The Super Soaker 2000 is the first water gun I've ever used that has perceptible recoil. The amount of water it delivers is stunning, a half-inch thick stream of H2O, speeding toward the doomed target for a good 40 feet or so. People won't get into water fights with you after seeing the capability of this gun, its performance is so overwhelming. The 2000 gave me two summers of tactical water gun supremacy before dying the death; I've found this to be about average for Super Soakers. Well worth the outlay of cash. The next water gun I buy will definitely be a CPS unit.