We continue our exploration of Mario’s fortress found foes with the nearly un-killable Dry-Bones. This cadaverous Koopa is completely invulnerable to fireballs and tail-whips and can only be temporarily stopped by being stomped on. The only thing that keeps Dry-Bones from being immortal are the invincibility star and the Hammer Bros Suit’s hammer. Despite their unrelenting nature, they are slow and easily left in the dust.