Minecraft wiki entry for Creeper, associated text: In Java Edition, a charged creeper explosion that kills zombies, skeletons, wither skeletons, or other creepers causes one[4] of those mobs to drop its corresponding mob head. If multiple valid mobs are killed in the explosion, the one that drops a head is chosen at random. In Bedrock Edition, a charged creeper explosion that kills zombies, skeletons, wither skeletons, or other creepers causes all the killed mobs to drop their corresponding heads.