as you go through the game, youre supposed to get more money to buy more expensive things. not get the same amount. that makes you do the same level over and over and over again just to get one upgrade. -1. final boss missiles leave no room. literally the entire screen is taken by missiles, you cant not get hit, let alone dodge it. -1. final boss takes far too long, -1. final boss requires you to be up close for half his attacks, then kills you instantly before you can move. same for dodging the attacks that require you to be far away. -1 not to mention it isnt even fun. 1/5
best set up: turtle, golem, healer, cleanser/goblin, goblin x4, cleanser/goblin, healer, golem, turtle (remove goblins as necessary for how many units you have). shock the most dangerous tower (atomic for example) immediately and quake a group of dangerous towers (crater or cannons) as your squad passes them, each ONCE per turn, dont bother healing. ive been getting gold on my first run of every map but the last 3 (got gold on all but the last one after a couple tries) after i started doing this
and to the developer, dont release a game that turns into a slideshow on the last level
absolutely no luck involved. It really does require pure skill and a delicate touch to maximise your score :)