Evil Block Invasion 2

Evil Block Invasion 2 is a simple shooter game featuring upgrades. During the last block invasion, Circleland was almost completely destroyed. It took many years to rebuild Circleland's glory. After years of peace, the evil blocks are invading again and you are the only one who can stop them. You will use the mighty circle cannon which is stronger than before but beware, the blocks have also grown bigger. Can you defeat the biggest of the blocks and save Circleland?