The Last level is a waste of time and money. don't bother with it, survival dosent work anyway, you only get two extra waves per level, i have asked for this to be fixed with an update but apparently, that is how they make their money, by false accusations untill this is fixed and you dont need 40000 gems to buy your way past the last level 1 star from me good game but survival should be unlocked for each completed level this one thing will make the game 5 star game bad ratings = bad buisness