try to get 100 coins then you restart and let a friend try to get 100 coins and time it to see who is faster. you tap one of the people who spawn and you see which one gives you coins. And if you do get 100 coins theirs a surprise. Note: stop timer at surprise! And if you get 10 wins you'll get the same surprise. Or if you get 5 pokemon you win. And if you get below 0 pokeballs you lose