Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
The goal of the game is to blast the alien forces and get the highest score possible with your three lives.
The tougher the enemy is to destroy, the greater the chance they will drop a valuable power-up. Collect them to help fight off the alien vermin and earn yourself the highest score. The power-ups can be a one-shot event or a timed event.
There are FOUR different powerful items to collect, Triple Shot, Single Beam Shot, Shield and Slow Time.
The alien Command Ship will randomly spawn from time to time and hover across the screen behind the alien invaders.
If you destroy the Command ship, you'll be awarded a random point value between 100 and 500 points.
The difficulty ramps up quickly with the infestation's relentless attack intensifying as time progresses.