Spike Bar
The title of this article is conjectural; an official name for the article's subject has not been found, so it has been given a fitting title by the editors. If an acceptable name is found, then the article should be moved to the new title.
Spike Bars are obstacles that first appear in Super Mario 3D Land. They are similar to Fire Bars, but have spiked balls in place of fireballs. Contrary to Fire Bars, which mostly appear in only lava-themed levels, Spike Bars are found in a multitude of levels throughout the game. As with Fire Bars, there can be two Spike Bars rotating around the same axis, though unlike Fire Bars, there are no varieties of Spike Bar which rotate on their side or have more than two bars rotating around the same axis.
Spike Bars return in Super Mario 3D World, though their appearance has changed; they now look more like spiked rollers rolling around a center than Fire Bars. Also, they are only seen with two or four bars rotating around the same axis. Spike Bars are found only in World 
Castle-4 and World 
Mushroom-7. Additionally, Spikes attack by producing unattached Spike Bars and throwing them forward, which roll down the path in front of them. Other individual Spike Bars can also be found rolling on pendulum platforms, or swinging back and forth via two chains.
