15/7/07: Thanks for the frontpage and all the comments! I can see where I went wrong here and I'll do my best to fix things if there ever is a Turret Defence 3.
P.S. To anyone who is about to comment on how bad my spelling is, Im from the UK and we spell "defence" here with a C not an S
Your mission: Destroy the enemy forces to prevent them taking out your turret.
Most enemies wont fire untill you're in range of their guns to take the opportunity to eliminate them before they get too close. Each level your turret will be automatically upgraded to shoot further so you can target the enemies before they start shooting you.
Instructions are shown at the top of the screen as the game begins and you can disable sounds by clicking the small white box in the bottom right hand corner during play.