Merge Defense: Pixel Blocks Add This Game to Your Site:
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Merge Defense: Pixel Blocks is a cool puzzle game made for boys for free. You can play it online. In this game,you can merge two blocks with same number to make them evolve into a block with bigger number. Move the blocks to the fort grids and you can attack the invaders with the blocks. The bigger number on the block, the more damage the block can cause. So go ahead and merge! Good luck!