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