The multi-colored monsters decided to build a tall tower in Monster Up so that everything could be seen from it for miles around. This will allow them to ensure their safety and if someone approaches with evil intentions, they will see from afar and be able to prepare. The higher the tower, the better, the monsters decided and began construction. A group of creatures will supply stone and wood blocks, and one monster that you control will stack them. To do this, click on the hero to make him jump when a block appears on the left or right. The more accurately he lands, the more evenly the next block will rise. Over time, the monsters will change in Monster Up.