Limiting the options of new players while giving access to more powerful weapon to the more experienced players is NOT the way to make a good multiplayer strategy game. It ensures that most new players will not come back. Otherwise not bad.
This game has a lot of potential and a heck of a lot of glitches holding it back. The "Sacred Towers" seem to only want to be placed in between the legal placement squares thus making them nearly impossable to use. The tutorial does not explain the mission goals, which are done in a frendly but completely cryptic graphical manner. Also the game needs a zoom out feature. (I'm listing the stuff I saw, the game asks for feedback.)
Would be a half way decent game if the Link to the web site werent right where you hit it trying to deal with towers. As it is I'm sick of loosing the game to being transfered to their web site...
 "Solar Chiefs"){kind=icon}
 "Hunter Story"){kind=icon}
 "ButtonHunt 3"){kind=icon}
 "Besieged"){kind=icon}
 "Temple Guardian 2"){kind=icon}
 "Zombie Tower Defense 2"){kind=icon}