It is a good game but very unfair too .The biggest problem about this game is ,it is not worth buying weapons that cost gems .If you want to rank up weapons that cost gems,you want to spend gems for that too.I defeated hermit and lynx in eclipse mode and got their weapons .I like that weapons too much but I cannot use it for long .After I hit the maximum level of these weapons ,I need gems to rank up it and gems are very hard to get .So I request you to allow us to rank up weapons with coins