Just like the original Angry Birds, this space-themed follow-up depicts a war of bird-versus-pig. In each level it is your job to catapult these kamikaze birds into the pigs's towers, knocking down their houses and defeating the green swines inside. To play, you need to hold your finger on the bird in the catapult, then drag your finger backwards to build up power. In Angry Birds Space, you can aim your shot by watching the dotted-line trajectory. This lets you see exactly where your bird is going to go. Then take your pinky off the screen to watch the bird soar through space and (hopefully) hit the pig's house on the right of the screen. To complete each level, you need to defeat all the pigs on the screen before running out of birds. In Space, each planetoid has a gravitational influence depicted by a giant bubble. When inside this bubble, birds and objects will have their trajectories warped towards the gravity well. This lets you bend birds towards planets and shove objects into orbit. You'll need to take that into account before you fire a bird.