From level 12, you can open the scenario of tower of watchmen, where you will have great fun if you are tower defense gameplay fan. There are 8 directions to increase the power of your towers. Once in, the character's strength will be decreased to 1% as of its normal. Wise strategy and layout is the key to win. Also remember the item in the watchmen shop will help a lot.
There are 6 series of defense series, including the Forest Series, the Mountain series, the Fire series, the Alchemist series, the Shadow series, and the Maze series.