Minecraft wiki entry for Superflat_survival, associated text: Whenever you find a big village with an iron golem, kill it if you can. Because there are no ores in a superflat world, this is the most effective way to obtain iron, the other finding it in chests and killing zombies, which drop it rarely. Dropping sand on the golem can sometimes kill it, but this is slow and tedious. If you have enough arrows, sniping them can be an effective tactic. Never sword fight a golem without armor, as it deals heavy damage and can kill you in two hits. Whatever method you choose, get enough iron for a full suit of armor and all tools. Enchant everything at least level one, and your armor, sword, and bow higher. Alternatively, you can surround it in blocks or trap it in a pit and drop sand on it to kill it without risking death. This is an easy way to kill them, even in the early game.