The game started off fun and enjoyable, but then I ran into a bug while upgrading a weapon. I was trying to use my last 5 sanguinite to upgrade the weapon. I tapped the max sanguinite button and the upgrade button, nothing else, but the game used my two star purple weapon that was in my inventory to upgrade the weapon when it wasn't selected at all. It takes a lot to get a weapon to that tear. Customer support said it was all my fault and they won't fix it. Absolutely trash customer support.