User blog comment:Pgrobban/The rise and fall of Cookie Run/@comment-24956068-20151002102429/@comment-25889587-20151002125453

Beginners can only grind up to (around) 6,000 coins per play, and remember that Special Episode 1 requires keys instead of lives, so they can only play 3 times an hour, which probably can only give you 18,000 coins. Not much, especially upgrading those S-grade cookies still requires grinding.

All in all, if you want to play Cookie Run seriously, you NEED someone else that also start playing with and compete with you (I suggest more than 2 friends). Adding other people's LINE ID can only discourage you from playing because of their gigantic high scores. Take myself for example. I don't recommend beginners adding my LINE ID or they will feel stomped :P