First build houses then when you have 400 or more coins build the water drums at the end when you have 300 coins you can build a park there are two therefore you will have to save 600 coins the same thing happens with the drums that there are 3 when you have finished your city you can travel to another player and you will have to take the gift in case you want music there is a button that if you press it will start to play music.
