From the Super Mario Wiki, the Mario encyclopedia
Jump to navigationJump to search
This article is about the spring-like obstacle that first appears in Donkey Kong. For the Toad Force V character from Mario Party Advance, see Jack (character). For the obstacle also called a piston, see Skewer.
Not to be confused with Trampoline.
DK Arcade Jack Sprite.png
A jack from the original arcade version of Donkey Kong

First appearance

Donkey Kong (1981)

Latest appearance

Super Smash Bros. Ultimate (2018)

Effect on player

Defeats or damages the player.

Jacks[1] (also called mad springs[2], springs[3][4] or pistons[5]) are obstacles that first appear in Donkey Kong.


Donkey Kong series[edit]

Donkey Kong[edit]

In the Donkey Kong arcade game, jacks are constantly bouncing and dropping near Donkey Kong on 75 m. If Mario gets hit by a jack, he loses a life.

Donkey Kong (Game Boy)[edit]

DKGB Jack.png

In Donkey Kong for the Game Boy, jacks are now actually thrown by Donkey Kong instead of just bouncing past him. Negating them with a handstand causes them to fall off-screen like most enemies and obstacles, instead of becoming usable like barrels.

Donkey Kong 64[edit]

Jacks reappear in the Donkey Kong arcade game playable within Donkey Kong 64, acting the same as in the original release.

Super Smash Bros. series[edit]

In Super Smash Bros. Brawl, Super Smash Bros. for Wii U, and Super Smash Bros. Ultimate, jacks are a hazard in 75 m. The Donkey Kong sprite at the top of the screen periodically activates, and when that happens, jacks bounce from the left, acting in much the same manner as the original version. In Wii U and Ultimate, the Ω form of the stage does not feature jacks, and in the latter, jacks as well as other stage elements more closely resemble the arcade version instead of the NES version. In addition, the spring item found in these games and Super Smash Bros. for Nintendo 3DS is modeled after a jack.

Names in other languages[edit]

Language Name Meaning
Japanese ジャッキ
Spanish (NOA) matatena jacks
Spanish (NOE) resorte spring
French (NOA) vérin jack
French (NOE) ressort Spring
Dutch krik jack
German Wagenheber Jack
Italian martinetto jack


  1. ^ Instruction manual for NES home port.
  2. ^ Instruction manual for Atari 8-bit home version.
  3. ^ Instruction manual for Commodore 64 home version.
  4. ^ The Donkey Kong 64 Player's Guide, page 127.
  5. ^ Donkey Kong 64 Prima's Official Strategy Guide, page 67.