Obsolete mechanics, uninspiring upgrades, steep curve within the last 20 or so levels. Good as a first flash game but nothing I would show out of my innter circle.
I found it to be easier if a part or even most (if not too much) of my web breaks giving me a clear overview and the chance to extend it properly. Took me about 15 games in total to catch a bat.
 "Tower Defence Extreme"){kind=icon}
 "Arachnophilia"){kind=icon}