Make your way up the hill where you’ll find a big Chain Chomp then cross an unstable bridge. After seeing some Bob-ombs, go through rough terrain where big cannonballs roll about. As you go up the mountain, watch for incoming big cannonballs. Some areas of the mountain have no floors so jump or cross small bridges when you need to. Once you reach the top of the mountain, you’ll battle the Big Bob-omb. Grab the Big Bob-omb and throw him to the ground. Throw him to the ground 3 times and you’ll be rewarded the first Power Star.