Water Rush is a game in Stampy's Funland.
The game is set near Raindrops, in a high structure with three levels with a one block ledge in which to walk on them. There are dispensers and pistons on the wall, directly next to the ledges, used as obstacles. Opposite the grid is a traditional looking sushi restaurant, with an accessible roof. On the roof is a throne-type seat overlooking the game. There are three buttons, each controlling their respective level obstacle.
The redstone mechanisms go underground and behind the three levels because the Funland is set above a huge lake. Stampy used a mechanism where you can place a redstone dust and redstone torch on a block, allowing it to go up or down relatively simply without using loads of redstone dust.
The aim of the game is to be the first to the finishing line. Players take different roles: one dresses like a shark and sits on top of the sushi restaurant, with the three buttons at hand, and the others dress like dolphins and assemble at the start of the grid. Stampy often remarked on how silly everyone looked when playing, because they would walk in a funny fashion (that is why the mini-game was created in the first place). When the signal is given, the "dolphins" may start advancing on the ledge. The "shark" can press buttons to slow them down. The first button causes water to fall down the first ledge. The second button causes a piston to extend from the wall on the second ledge, and the third button causes arrows to fire from the third ledge. These obstacles are used to of knock off the dolphins and force them to go all the way back to the start. The winner is the first person to reach the end of the third level, at which point the roles switch. The shark will fall into the sushi restaurant when the winning dolphin pulls a lever. This is a dog hazard because Aqua died here.
The game was slightly improved when Stampy and his current helpers played it in the Stampy's Funland series. Four new pistons were added to make certain sections harder.