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Super Mario Bros. 3
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 an enemy. If the player attempts passing them, it will rise from the top and bottom of the platform and attempt to hit them by moving left to right. Stretches are often found in groups. Stretches can only be defeated with a Starman or hammers thrown by the Hammer form.
Super Mario Maker / Super Mario Maker for Nintendo 3DS / Super Mario Maker 2
After a long absence, Stretches reappear in Super Mario Maker, its 3DS port (verbally referred to as "Boos"), and its Nintendo Switch sequel. In the course editor, a Boo will automatically become a Stretch if it is 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. Their appearance is 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 Super Mushrooms as attempting to give them a Super Mushroom will turn the Stretch into a Big Boo rather than bigger Stretches, and giving them wings will make them faster. Stretches can be defeated in Super Mario Maker like normal Boos, with either a Super Star or a Goomba's Shoe.
Super Mario Run
Stretches reappear in Super Mario Run, where they are usually found in Ghost Houses 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
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".
Names in other languages