I have recently had the pleasure of purchasing the South Park Tower Defense game, and let me tell you, it is GREAT! I really had no experience in the tower defense genre prior to this but I stepped in at the normal difficulty level and I have had a blast learning some of the strategy involved in this type of a game. I also love the South Park references, being a South Park fan, so this really topped off the experience for me. I can see how this game may not be everyone's cup-of-tea but, from a personal standpoint, I think this game is a real gem and I am enjoying every minute spent working my way through the limited achievement list.