It needs a sound track like Age of War had that could keep repeating but not sound too repetitive. There also needs to moving obstacles and backgrounds that have an appearance that shows elevation. Good game 5/5
It needs multiplayer; split the level into two sections one player can put towers down on one the other player can put them on the other side make it so that the players lose health if they cross into the opponents side but be able to send fingers to attack at the cost of gold and shoot across to the other player.
The game needs a way to make objects move on their own, a button to draw entire rooms of block by dragging the mouse after clicking, and a way to enable/disable health and make it go up or down depending on the object touched(each object could have it set in the edit bar).