Hot Java - Version 1.0.0 In this game, the player has to rearrange the pipe tiles to let the java flow through the pipe to reach the nozzle. Click on the blue tiles to reveal puzzle pieces, then click and swap the puzzle pieces and align them to form a single line from start to finish. Once the pipe is properly connected, click on “Turn on Valve” to earn score for each empty pipe tiles the java travels. The longer the pipe, the higher the score. The game is over if the liquid runs into any obstacle.