The same as Knock on Wood, On Thin Ice and Spring is in the Air, you have to use your Launcher to attack the Pigs. Take a Level Card and build the level using the Wood, Glass and Stone Blocks. There are 5 difficulties of the Levels. 1 set says 1 (PB) for Pig Bang. 2 (CC) for Cold Cuts, 3 (FMTTM) for Fry Me To The Moon and 4 (U) for Utopia. An extra one, saying E is for Eggsteroids. In your levels, you can earn 8 Eggsteroid Levels. 2 Eggsteroids are hidden in Pig Bang levels, 3 in Cold Cuts, 1 in Fry Me To The Moon. And 2 in Utopia. Also, Danger Zone is not included with this set. After completing Pig Bang and Cold Cuts and Fry Me To The Moon, you can battle Fat Pig in Utopia! That is why a seperate unfrozen version of Fat Pig is available.
Eggsteroids is an episode of Angry Birds Space that is the Space version's equivalent of the Golden Eggs episode of the classic Angry Birds . Golden Eggsteroids are found within levels themselves. When an Eggsteroid is obtained, the user is transported via a wormhole to the Eggsteroid level. When the level is completed/player gives up, he/she will be transported back by wormhole to the level where the Eggsteroid was. From that moment, the player can freely access the Eggsteroid level by going to the Eggsteroid world in the episode selection screen. The background of the eggsteroids episode has a large egg-shaped planet in the middle with eggsteroids floating all over the place (possibly the Angry Birds version of Saturn). The background also has a yellow sky and stars.