Tower Droids 2 is an interesting shooting game. You are sent to a vulnerable area to prevent waves of invaders. You will control a unique vehicle like a helicopter which is attached with powerful guns. Use these tools to destroy all of the enemies. Meanwhile, try your best to avoid bombs that they drop for survival. Additionally, you should collect coins in order to buy upgrades in the shop later. They will allow you to overcome challenges in next stages easily. Good luck!