Description: Aliens have infiltrated the naval command ship. You are the captain, you WILL go DOWN with your ship... The question is how many aliens will you take down with you??? Excellent Graphics 15 Levels to Play - Clear a fixed number of waves to unlock next level. However a player can play an unlimited number of waves in each level. Difficulty increases with levels Simple Game Play - Click to Shoot Guns get over heated with continous fire Purchase additional auto firing guns for support Purchase Lasers and Mines to help you 20 Achievements to Unlock Shared Objects - Saves player unlocked levels and money Music Player - Choose to play three different types of tracks.