Stretch (Boo)

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Stretch SMR.png
In-game image of a Stretch from Super Mario Run
First appearance Super Mario Bros. 3 (1988)
Latest appearance Super Mario Run (2016)
Parent species Boo
This article is about the type of Boo that appears in Super Mario Bros. 3. For type of Shy Guy that appears in Yoshi's Island, see Stretch (Shy Guy).

Stretches[1] are Boos attached to solid platforms that first appeared in the game Super Mario Bros. 3.


Super Mario Bros. 3[edit]

Artwork of a Stretch

Stretches first appeared in Super Mario Bros. 3 and its respective remakes. They are found exclusively in fortresses and are more of an obstacle than a true enemy. As Mario or Luigi attempts to pass, it will rise from the top and bottom of the platform and attempt to hit him by moving left to right. Stretches are usually found in groups, making them a formidable foe. Stretches can only be defeated with a Starman or hammers thrown by Hammer Mario.

Super Mario Maker / Super Mario Maker for Nintendo 3DS[edit]

In-game screenshot of a Stretch
SMM, SMB style
SMM, SMW style

After many years of absence, Stretches reappear in Super Mario Maker and Super Mario Maker for Nintendo 3DS (only referred to as "Boos"). In the course editor, a Boo will automatically become a Stretch if it placed on top of a solid block. In this game, they can be placed on any surface, and will pop up more periodically, making them more of an enemy than in their original appearance from Super Mario Bros. 3. This new characteristic also makes them less predictable. Their appearance is also slightly different, and they are not connected to a white platform anymore. New sprites for Stretches have been made for the Super Mario Bros., Super Mario World and New Super Mario Bros. U styles. However, they cannot accept mushrooms and giving them wings will make them faster. Attempting to give them a mushroom will turn the Stretch into a Big Boo rather than bigger Stretches. Stretches can be defeated in Super Mario Maker like normal Boos, with a Super Star or a Goomba's Shoe.

Super Mario Run[edit]


Stretches also appear in the game Super Mario Run. They are usually found in haunted house courses and act like they did in Super Mario Maker. They have the same appearance as the Stretches in the New Super Mario Bros. U style from Super Mario Maker.

Nintendo Comics System[edit]

A Stretch, as depicted in the Nintendo Comics System

A single Stretch appeared in the Nintendo Comics System short "In the Swim! Fun and Sun Fashions" in an advertisement for swimwear, which depicted it lifting weights on a beach. The Stretch, which only had one face, was shaped like a "Z".

Official profile[edit]

Super Mario Run[edit]

  • Notebook bio: "This ghost really likes sticking to blocks, suddenly appearing and disappearing as it moves randomly."

Names in other languages[edit]

Language Name Meaning
Japanese ネッチー[2]
Spanish (NOA) Bú estirado Stretched Boo
Spanish (NOE) Boo Estirado Stretched Boo
French Flexcible Pun on flexible
Dutch Stretch -
German Buu-Laken
Italian Piattaforma Boo Boo (on a) Platform
Portuguese Obustáculo From obstáculo (obstacle) and Bu (Boo)
Russian Тянучка
Korean 네치(Super Mario All-Stars)
끈쭈기 (Super Mario Run)
Transliterated from the Japanese name.
Possibly originated from 끈적끈적 kkeunjeok-kkeunjeok meaning sticky and 쭉쭉 jjuk-jjuk meaning stretchy.


  1. ^ Super Mario Bros. 3 English instruction booklet, page 39
  2. ^ Super Mario Bros. 3 Japanese instruction booklet, page 40