Heli Intrusion. Survive waves of invading hostile helicopters! Shoot them with your cannon and try to rotate them until they explode. Let them knock into each other to create massive chain reactions of explosions! Earn money with each exploded helicopter to repair and upgrade your cannon. Shoot the ragdoll style soldiers to earn more money. Don’t let the helicopters escape or you loose live. Enjoy and have fun in playing this free online game. Good luck.
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