Have a great game in Friv game 2018! Merge Defense: Pixel Blocks is a free, enjoyable puzzle game designed for boys. It is playable online. In this game, you may combine two blocks with the same number to create a block with a larger number. Move the blocks to the fort grids to use them as weapons against the attackers. The greater the number on a block, the more harm it may inflict. So on with the merger! Good luck! We also update many new games for online game players around the world similar to this game like Pull Him Out Game. You will complete and achieve the best result to relax after every stressful working hour.