This is an obstacle course for Steve to run through while being chased by a spider and a zombie.  First Steve has to climb over the obstacle, but he can’t jump it because it is more than one block high, so he has to build an elevator block to get up, but the spider can just climb up… Then he has to run across the bridge and jump the water hazard.  Then he climbs up the ladder and has to light the TNT to stop the spider from climbing.  Then he has to jump his chest so he doesn’t get exploded by the TNT.  All that and he’s ever even seen ANW.