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 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; otherwise you will get only score. You are challenged to play this game for earning highest possible score. You can play as many times as you wish to beat the best entry in the leader board.