Munchers may seem like black nipper plants but they’re not. They act more like animated spikes than living creatures. In-fact, I’m fairly certain that code-wise the game engine refers to them as blocks and not as enemy sprites. As a result these horrible creatures are completely invulnerable. That isn’t entirely true, part of being a “block” leaves them vulnerable to being turned into coins by a p-switch. Certain levels have long runs of these that can only be traversed while in possession of a Starman or while riding in Kurribo’s shoe. Other levels feature Munchers frozen in ice. A stray fireball can free them, replacing an otherwise benign ice-block into an invulnerable killing machine.
