In this game you need to carefully stack the blocks to build a tower. You control a worker and the blocks will slide in from the left or the right. Press the screen so that the worker will jump up to avoid being hit by the block. As the worker lands he will stand on the block and stops it. If you jump too early you will land on the ground before the sliding block comes, and so will be hit by the sliding block. If you jump too late you may either be hit by the sliding block when jumping up or jump over the sliding block so that it cannot stop and falls off the other side of the tower. So it is important to time your jumps correctly. You will score higher points if you can stack the block exactly at the center of the previous block. The higher you stack, the higher your ranking.