Extremely Disappointed
I just finished 1st place in a 30 marble elimination race, and received 0.04 GEMS?!?! Are you kidding me?! This frustrated me to the extent of deleting this game. It would take me ages to even get new marble colours just by collecting tiny scraps of gem after barely making it 1st. But if this prize system is something you enjoy, then install it, be my guest. Probably isn’t for most people.