After the Fire and Water game has loaded click the "Play" text from the bottom. Then click "Play" text from the following screen on the menu and assign the chapter that you want to play. You can use "Arrow Keys" for the fire character and "A, W, D" keys for the water character to navigate. The fire character is destroyed in the blue waterhole and the water character is destroyed in the red waterhole. Also, both of them are destroyed in the green waterhole. So you must be careful while you're overcoming the waterholes. Enjoy this adventure game!