After the games has been loaded click the "Play" button and write your name. Then click "Ok" and game starts! Sniper plays the game with mouse, to charge "R" button, and for a better range use "Space" button. Each level you gets more money and you can buy a stronger weapon with it. Don't forget the enemies are more stronger on each level and attacking stronger. At the right corner, there is the strength of the house that you must defend. Whenever your enemies fires at it, walls are being wracked. If you let them to wrack all of the walls the game will be over.