if you want coins and want XP then ill tell u how. It's easy and fast. So go on campaign. Then if you have not played just keep playing campaign. Once you finish the world you will get 15 coins, 55 XP, and 5 gems. Once you finish the third world you will even get a good free gun. Each world you finish, 55 XP each. And when you level up u get coins and gems. That is how you get coins and gems quick. I got 340 coins in one day doing this method. Hope this helps