Shoot the aliens in space. With your penguin!
On the Phaser Forums owen wrote: "Hello again. Well I have made a lot of changes to this game which is still work-in-progress but it has come a long way since I last asked for feedback many months ago. Basically Penguinvaders is a simple "shoot the aliens in space" game in its purest form, just shooting aliens, collecting power ups, that's all. (The difference being instead of a spaceship you have a penguin!)."