Does anyone find this game as ridiculously addictive as I do. I hadn't played it in months and then I found out they did some new upgrades and now i'm obsessed again.

Munch- could you explain what this is for the unitiated?

its a flash game, where you use different gun towers to make a maze for creeps to go through. You have to use the different towers effectively to kill all the creeps before they get through. There are several different websites that host the game.

heres one http://www.handdrawngames.com/

there are lots of maze examples on youtube

I personally like the monkey version:

http://www.addictinggames.com/bloontowerdefense.html

I tand to stay away from tower defance games; puzzle games are more fun.