It's a simple game but very addictive. I found myself unable to stop until I beat the whole thing. After that, I had to see how high a score I could possibly get. The controls are functional and can be configured to taste. When I first discovered the original game, I thought it was fun and with a good sense of humor. When the next wave cam out, so did my credit card. I bought both the original and the Christmas edition for myself and my wife(also addicted). It's not a game that you will play for months on end or even weeks, but it is a welcome distraction from the Guild life in virtually any MMO. I still find myself going back to this game on a regular basis. In fact, that's what inspired this little review. I opened up the laptop last night and low and behold, it still hasn't made it to the unused icon's folder. Sometimes it's the simple things that can allow for some of the greatest pleasures.