I played this for like 15 minutes and I still don't know what's going on. I think I'm trying to run out of cards like in UNO? It's lowkey fun trying to figure it out. (I would keep playing but my computer is about to die :( )
I know that when I press PASS I pick up all the cards from the middle, and that there is +2 and +4 cards.
I too am having the issue of it being hard to select the card u want. I'll click in the same spot repeatedly and it will give me like 4 different cards.