Spike Trap

Spike Traps (or simply Spikes, sometimes Spiked Platform or Spiked Floor ) are harmful objects that can power down characters, cause them to lose health, or even lose lives. These traps appear in nearly all Mario games. Spike Traps tend to be stationary, retractable, or attached to a moving object. They are first introduced in Super Mario Bros. 2, though Icicles in Mario Bros. are functionally the same until they fall.

Super Mario series
Spikes make very common appearances in the Super Mario platforming series. If they are touched, they cause the player to lose the current power-up or lose a life if the player is Small Mario. If players are under the effects of invincibility either from a Super Star or a Mega Mushroom, they can safely traverse across spikes.

In Super Mario Bros. 2, riding an Autobomb is mandatory in order to cross the spike traps in some levels.

In Super Mario Bros. 3, wearing a Goomba's Shoe allows Mario or Luigi to easily hop across spikes.

In Super Mario World, Yoshi can safely walk on spike traps. This game also introduces the Falling Spike.

In Super Mario Galaxy and Super Mario Galaxy 2, Mario or Luigi run uncontrollably if come into contact with a spike trap.

In Super Mario 3D Land, spikes often appear as spinning spiked balls attached to a block (in a similar fashion to Fire Bars) known as Spike Bars and as stationary spiked blocks. Retractable floor spikes similar to those present in Super Mario Galaxy 2 appear as well.

Yoshi series
In Super Mario World 2: Yoshi's Island, Yoshi's Island: Super Mario Advance 3, Yoshi's Island DS, Yoshi's New Island, and Yoshi's Woolly World, spikes are fatal, as simply touching them causes a Yoshi to lose a life. A more common rough object, a thorn, also appears in the Yoshi's Island series.

Yoshi's Story features living, jumping Spikes in Bone Dragon Pit and Magma Castle.

Super Mario Maker
In Super Mario Maker and its port, Spike Traps also appear as objects. They can damage Mario if he touches them, and are classified as block objects. Depending on the game style and theme, Spike Traps can change appearance, most notably in the Super Mario Bros. 3 and Super Mario World game styles, where in the underwater theme, the Spike Trap either changes into a Jelectro, or a Sea Urchin from The Legend of Zelda: Link's Awakening. Additionally, shaking a Spike Trap in the New Super Mario Bros. U ground theme makes a train sound.

Paper Mario: Color Splash
Spikes appear in Paper Mario: Color Splash. Spike pits appear in levels such as Mustard Café, The Golden Coliseum, and Fortune Island. 8-bit spikes appear in Green Energy Plant. In Kiwano Temple, many spikes that resemble Spiny Shells appear. Some must be crossed by rolling platforms, and others must be flipped over with a POW Block.

Super Mario Run
Spike Traps reappear in Super Mario Run, making their first appearance in the level Shell Me the Way! when collecting the Black Coins. They have the same appearance as the Spike Traps in the New Super Mario Bros. U style of Super Mario Maker.