Skewer

Skewers (also known as Spikes and Spike Pillars ) are gray, blue, black or green metallic pillars with spikes on them, serving as major, indestructible course obstacles. They primarily appear in castle and fortress levels, usually later in the game, with some exceptions. First appearing in Super Mario World, their attack patterns are moving in a single direction, either vertically or horizontally, and they can either power-down Mario if they touch him or crush him for an instant life loss. In Super Mario World: Super Mario Advance 2 and later titles, however, the Skewers can only power-down Mario. Unlike some other obstacles of the same manner, Mario can run through them if he is invincible or is undergoing post-damage invincibility frames.

Super Mario World / Super Mario Advance 2
Originally appearing as light gray stone pillars with gray spikes in fortresses and castles, the Skewers are all vertical in Super Mario World and its remake, moving up and down, giving a thud sound and a mini-earthquake as they hit the ground, while also blocking the player's path. The Skewers are solid obstacles that can damage the player upon contact, and they can even cause an instant life loss if the player is caught between a Skewer and the ground. If Mario is invincible or going in post-damage invincibility frames, he can run through them, unlike other obstacles of a similar nature. There are usually several of them in a row which have to be timed in order to safely cross them.

Skewers appear as an obstacle, alongside Grinders in #6 Wendy's Castle in the first room; in fact, the very first obstacle in the castle is a slow-moving Skewer that take around 13 in-game seconds between rising and pounding the ground and a Dry Bones, where Mario must time his jump on one of the two Jumping Boards to pass by. In the Super Mario Advance 2 version of Wendy's Castle, an extra Skewer over a pit has been added before the Skewer with the Jumping Boards. A row of seven Skewers that move faster, take around 8 in-game seconds between rising and pounding the ground, then appear, hiding in the ceiling, where Mario must time his running while also avoiding Grinders as he waits for the Skewers to rise. Before the door to the Midway Gate and the second room, three more Skewers appear, the second of them pointing upward and moving in an alternating pattern, and they move very quickly where they take around 3 in-game seconds between rising and pounding the ground. If Mario has activated the switch at the Red Switch Palace, the red ! Blocks make it easier to cross over the second Skewer facing upward. In an early version of the level, more fast-moving Skewers before the Midway Gate were planned to appear.

Skewers are the main obstacles in the Valley Fortress. The first row of seven simultaneous Skewers move slowly, take around 13 in-game seconds between rising and pounding the ground (11 in the Super Mario Advance 2 remake), and give players ample warning by slowly inching out before crushing the ground. In between them, past the first three is a green ! Block. The second set of five move faster, take around 8 in-game seconds between rising and pounding the ground, around as fast as they did in #6 Wendy's Castle, and additionally require players to jump over spikes to pass. Past the Midway Gate, the last set of seven Skewers move very quickly, take around 3 in-game seconds between rising and pounding the ground, and Mario needs to jump over lava and avoid Lava Bubbles in addition to avoiding the Skewers. The last Skewer in the set before the boss door is a Skewer that moves upward, and it moves in an alternating pattern from the first six.

They last appear in Bowser's Castle in door number 5, where a row of 9 of them appear alongside Thwomps, and they take 13 in-game seconds between rising and pounding the ground. The first Skewer is the closest to the ground and the succeeding ones get situated higher until the penultimate and last one, and Thwomps are situated between the Skewers, forcing players to run through them. Unlike Wendy's Castle and Valley Fortress, the Skewers in Bowser's Castle come down slowly, but can still cause an instant life loss if the player gets crushed by them in the SNES version of the game.

Similar obstacles also found in fortresses and castles include the large brown Pillar that appears in auto-scrolling areas and miniature wooden ones without spikes on the sides (resembling pencils) in Chocolate Fortress and #7 Larry's Castle.

New Super Mario Bros.
Skewers return, along with some horizontal ones, in New Super Mario Bros. They are now metallic military green with yellow spikes. They appear only in and. Unlike in Super Mario World, they are not treated as solid objects, and cannot instantly take out Mario, unless he is small or mini. Shell Mario can also duck in a Skewer's path without taking damage.

New Super Mario Bros. Wii
Skewers, referred to as pistons in the Prima game guide, make a comeback in New Super Mario Bros. Wii, where their coloration is now definitively black and they now spin as they move. The game also features a very long and extremely fast Skewer that runs along the floor for the length of a long room in, and very large vertical ones in and. The sound they make is that of a large sliding gate slamming.

Super Mario 3D Land
Spike Pillarss from New Super Mario Bros. Wii make a return in the Nintendo 3DS game, Super Mario 3D Land, making their first appearance in a 3D Mario game; they are no longer in castles, instead appearing on airships. They cannot be destroyed, even while invincible; as Statue Mario or Invincible Mario (including White Tanooki Mario), they are like walls if run into with these powers.

New Super Mario Bros. 2
In New Super Mario Bros. 2, Skewers make a reappearance. However, unlike past New Super Mario Bros. installments, they are blue, and they appear only in one course,, which is water-filled course, and only horizontal Skewers are featured.

New Super Mario Bros. U
Skewers also appear in New Super Mario Bros. U, where they are found in Giant Skewer Tower and the Challenge Mode level 200 Clifftop Coins. All of the Skewers are horizontal and are once again black with gold spikes as in New Super Mario Bros. Wii, and their lengths vary. The Skewers also appear in the New Super Luigi U course, Shish-Kebab Tower, but they move at faster rates than in New Super Mario Bros. U.

Super Mario Maker / Super Mario Maker for Nintendo 3DS / Super Mario Maker 2
Skewers return in Super Mario Maker as an addition in a software update that was released on March 9, 2016. They function identically to their previous iterations, activating every few seconds, but with some differences. Their tips have been flattened, they come with a base that they shoot out of, and have a maximum length of 13 blocks long and the base, unless they hit terrain. They will tear through bricks unhindered, and also are able to destroy other harder blocks, but will stop and recede after doing so.

They can be added in any game style except Super Mario 3D World, including the original Super Mario Bros. and Super Mario Bros. 3, where they had never appeared before. In these 8-bit adaptations, they are largely black, with some gray scaling on the edges, and spikes; the points are white, with the sides of the spike as gray. There is a little bit more detail on the Super Mario Bros. 3 version. In the Super Mario World style, a new sprite was made instead of using the old one, though it is the same color as the original sprite.

Skewers can be used by shaking a Thwomp; however, they cannot be enlarged with Super Mushrooms. In Super Mario Maker for Nintendo 3DS, Skewers are standalone course elements and are no longer created by shaking a Thwomp.

Skewers reappear in Super Mario Maker 2 with the same design and function.

Super Mario (Kodansha manga)
In the Super Mario Kodansha manga, volume 8 and 9 and the third and fourth Super Mario World arc, Skewers appear dangling from ropes in Wendy's Castle. Skewers and Thwomps appear in the 5th room of Bowser's Castle and later in the Valley Fortress-inspired section of the arc where Mario, Luigi and Winged Yoshis fly past the section to defeat Reznor.

Super Mario World television series
The regular Skewers from the game also appeared in the Super Mario World cartoon, in the episode "Mama Luigi".

Mario Party: Island Tour
These obstacles also appear in the minigame from Mario Party: Island Tour, Kabob and Weave, where players must simply avoid them.

Mario Party 10
Skewers reappear in Mario Party 10 in the minigame Skewer Scurry, and appear as an obstacle in Chaos Castle on the Unlucky Spaces to take away ten Mini Stars from the player if the vehicle stops on it.

Wario Land: Super Mario Land 3
In Wario Land: Super Mario Land 3, skewers only appear in Course No. 19 of Sherbet Land. Some are covered with spikes, making contact from any angle dangerous, while some are only tipped with a spike, meaning they also act as harmless walls.

Wario Land II
In Wario Land II, the typical skewers are absent, and instead replaced by blades. The function similarly, but only the tip is dangerous - Wario can move through the pole holding the blade. In Wario Land 3, they are reskinned as Nobiiru, a sentient creature with the same attack patterns.

Wario Land: Shake It!
In Wario Land: Shake It!, Skewers are featured only in underwater levels. If Wario inside his Subwarine comes in contact with these, the Subwarine will take damage reducing Wario's heart health to half.

Donkey Kong Country Returns / Donkey Kong Country Returns 3D
Jagged Jewels, a Key Temple level in Donkey Kong Country Returns and Donkey Kong Country Returns 3D contains some cylindrical Skewer-like obstacles, referred to as spiked shafts in the Prima guide. These are encrusted with rows of sharp purple jewels, serving as spikes, and end with a large, similar pointy gem on their top. Much like the Skewers in the Mario games, spiked shafts are indestructible; they shoot vertically, moving back to their starting point after a strike and repeating the action. Their movements are quick, but they always signal their darting with a brief tremble.

Notably, two Puzzle Pieces are found at the tips of two spiked shafts, moving along with them.

Super Smash Bros. series
Skewers from Super Mario 3D Land also appear in the stage based on the game, 3D Land, in Super Smash Bros. for Nintendo 3DS and Super Smash Bros. Ultimate, where they rise from the water and can destroy part of the stage's platforms (which resemble Switchboards), as well as hit any players who touch them. In the stage's Omega form, the skewers are seen in the background, having no impact on play.