Set Up:
Before filling Hydro Strike! with water, each player must press the stop button that's located to the right of their scoring wheel (see package back). 

Fill a cup with about 8 ounces of water and carefully pour it into the tank opening. Insert the pump assembly into the tank and screw the pump cap onto the tank until it's secure. Pump the handle 20 times to pressurize your Hydro Strike! 

Playing:
Each player sets their scoring wheel to 0. 

Players take turns placing the marble on the release ramp then both players put their hands on their hand grips.  Pressing the hand grips activates the flippers. 

When the ball touches your flippers, press your hand grips to send it down the alley towards your opponent's target. If the ball hits the target and activates the Hydro-Mist, the player who gets misted presses the stop button and the mist will end immediately. But the other player still scores a point and marks it on his scoring wheel and another round begins. 

Repressurizing:
You may need to add pressure to Hydro Strike after 3 or 4 games. Do this by pumping the handle 10 times. 

If you run out of water completely, repeat the set-up steps above. 

Winning:
The first player to score 5 points wins. 

Double Strike Variation:  For more challenge, use both balls at the same time! 

Important:
Empty water after use and leave the pump handle off for a couple of hours to completely dry out the tank before putting the game away.