A free program for Android, by HRY Games.

Police Riot Truck is an advanced police simulation game, and one of its key features is the ability to control pressurized water to disperse crowds that have become dangerous. This can be done by using the truck’s joystick in order to manipulate the amount of water contained within its tank. During each task, players must accurately assess how much water is needed without wasting any – as this will decrease over time. Once you begin a mission, nearby trouble zones will be highlighted on a map before your squad moves in for action. You’ll be responsible for quickly getting all teams deployed into their designated areas with optimum haste.