Enemies are a bit spongy and player bullets are kind of useless. Some enemies (mostly the 3 bullet and circle bullet ones) fire bullets faster than others at short range making it really hard to dodge. I found the best strategy is to kite outside the problem enemy range so the never shoot and wait for the towers to chip at them. Towers themselves are expensive and I never found out what the + does. I love the concept and it looks fantastic. Would definitely play again if it gets balanced.