Nice card game! Took me a bit in the beginning to realize how it worked (yes I'm those people that skim through the tutorial confident they'll get it), I thought I was trying to accumulate smileys and would get confused when it would go down from 28 to 4, until I realized the happiness was per round! As someone else said here, it becomes tricky when you have more cards and you don't remember which ones you have already, being able to view all cards in deck would have been amazing, but it's a solid game as it is. Good job!