Skewer

Spike Pillars are black, spiked pillars. First appearing in Super Mario World, they can cause an instant life loss if they're able to crush the player. In later games, however they just injure Mario without causing instant life loss.

All pillars are vertical in Super Mario World, but there are some horizontal pillars in New Super Mario Bros. and New Super Mario Bros. Wii. Also, New Super Mario Bros. Wii does feature some even larger spike pillars in World 6-Tower and World 7-Castle.

In Wario Land: Shake It!, spiked pillars are feature only in underwater levels. If Wario inside his Subwarine comes in contact with these pillars, submarine will takes damage reducing Wario's heart health to half.

Donkey Kong Country Returns also contains some spiked pillars in the level, Jagged Jewels.

Spike Pillars from New Super Mario Bros. Wii make a return in the Nintendo 3DS game, Super Mario 3D Land, where they are no longer in castles, but are on airships insteads. This marks Spike Pillars' first appearance in a 3D Mario game. They cannot be destroyed, even while invincible; as Statue Mario or Invincible Mario (including White Tanooki Mario), they can only be stopped if run into.

In New Super Mario Bros. 2, Spike Pillars make a reappearance, but unlike in the past New Super Mario Bros. installments, they only appeared in one level, which is the World 3-Tower, and were all horizontal. Interestingly, players can't go through the Spike Pillars in this game (during the invincibility frames after Mario gets hit), which means that they operate in the same manner as their Super Mario World counterparts.