What do you get when you crossbreed Tetris and PipeDream? A double doze of fun, challenge and action. PipeFun 2 is a new addictive game that no PC game aficionado should overlook. The rules are very simple - rotate different pieces of pipes to fit each other and form a "closed system" for the pipes to disappear. Sounds easy, but it's not. To help you out, you will get a bomb sometimes to just blow it up. Available for free download now.