hey guys. Level 4 is really easy. Beat without losing a life. Just put towers on the sides of the treasures and enemy paths. Put manticores on the side of the wall and other ranged and flying units. Eventually they will kill the manticores and u can attack from the sides.
 "Necronator"){kind=icon}
 "Medival Wars"){kind=icon}
 "Dungeon Defender"){kind=icon}