This is the eigth boss in the Chicken Invaders: Ultimate Omelette game. It is also known as Apple Core.
It is surrounded by Metal Barriers and some of them can shoot Red Lasers horisontally. The Core shoots 3 very fast Green lasers at you every 5 seconds.
If you didn't destroy all of the barriers , but you'll destroy the Core, you'll have three random sattelites (like in lvl 30).
For a list of all bosses go here Chicken Invaders 4: Ultimate Omelette: Bosses