While the graphics don't seem to hold up too well, this was still pretty fun. It's mostly because you can really get into the game. While there weren't that many different designs, they still worked out pretty well. I guess I'm so used to playing defense games that have waves. This was more complicated to understand. Then again, games like this aren't so much complicated as difficult.
The missiles being dropped didn't seem to do me much good. I like this desert setting too. I guess the "Monster" in the title was supposed to refer to the flesh colored guys. There were certainly more than one of them. This was an interesting play.