Cosmic Crystals 7-27 is the twenty-seventh level in Cosmic Crystals.The objective of level 7-20 is to use the birds to eliminate all the pigs. Get at least 129,000 points for 3 stars.
This level is very hard because:
Target the asteroid north of the level with the Red bird. With a bit of timing needed, send the Lazer bird through the bubbled pig, avoiding the TNT. Doing so will cause the TNT to drop onto the structure below. Finally, snipe the remaining piglet by sending the Red bird clockwise around the planet or directly at him.  Note: First and second shot is extremely challenging.