Stacking Challenge is interesting stack building game. Playing this game is simple as well as challenging. You will see some moving hooks carrying the blocks. These blocks keep moving left to right and right to left. Click ot Tap, as soon as you see the hooks over the stack. The hooks will leave the blocks to expand the stack. If all the blocks set in the stack, you will get score with bonus points. Each round will be of 3 minutes, You can play as many times as you want .