Press keys 1, 2 and 3 to change to different background music and find one you like. Press M to mute the background music and to unmute it. Press N to mute the turret sounds and to unmute them. Farms do not attack or do damage they just give you some more cash at the end of each wave. Click the green flag to start the game. Press play and then select the map you wanna play on. The arrow button on the top left starts the next wave and the arrow on the top right opens up the shop so you can buy turrets. You can not place turrets on the path, other turrets or bushes.
