This game used to be great. It's not anymore. If you are not thinking of spending hundreds of dollars, don't waste your time. Starting with February's update it's become a complete anti-F2P app. Players have been asking for more crystals, what's dev's answer? They took away the 25 free daily crystals, now we get zero bcs the challenges ask to update a paid content item. Dimension mission sucks now, HUGE TIME. About to uninstall. Netmarble greediness knows no limits. If I could I'd give 0 stars.