You need the <a href="" target="_blank">Flash 5</a> plugin to play this game.

The more aliens you shoot, the faster the remaining aliens move. If they get too close, it's game over — so shoot quick. And watch out for that flying saucer...
Move left – left arrow key
Move right – right arrow key
Fire laser – space key
Pause – P
Quit – Q
Mute – M - Daily video game blog

Angry Birds full solutions here