Download and play this game, sure you will enjoy very much and have a lots of fun. Knock Down 2018 pro it's a simple Arcade game. The game is to knock down the boxes using a slingshot and balls. Challenge your friends to play this addictive and fun game and beat their score. This is a level game. It has many unique and interesting levels where you have to knock down all the boxes using your logical and aiming skills to complete a level.