Stop That Roach! Gameboy

I picked this up at a local video game shop for 15$ Its supposedly a rare gameboy game. It plays similar to a Tower Defense Game. Anypony else played this game before. It is kinda difficult at first but once you figure out how the gameplay works its a pretty good puzzler.

http://http://www.youtube.com/watch?v=7eHQD-_FRTU