Just because it has the same gameplay elements as another game doesn't mean that it is stolen... Do you accuse every Tower Defense game as being 'stolen' from DTD?
@Longvie:
I put "created by NinjaCow" because I made the whole thing all by myself. I didn't "steal" and "modify" anything, contrary to your accusations. Besides, the 'copter' game that you showed is one of hundreds of similar games. I am sure that "hurtwood.demon.co.uk" did not invent the genre.