On the Curly City level. The best advice I have to beat that is to put…

On the Curly City level. The best advice I have to beat that is to put towers along the left side. Put a bubble tower in the middle. In the circle area on the right put towers around an energy and then put a cannon an and electric on the two spaces closest to the street. Scatter cannons and electric along the streets backed by towers where you can. Make sure you upgrade the area to the right very quickly. Wait until the big monster comes into that area. Slow them down and use any other specials. Most times it will kill them before they leave that area. This is the last level of the game and I found it to be easier to beat than the 2 before it.