Stretch (Super Mario World 2: Yoshi's Island)
From the Super Mario Wiki
Stretches, or Stretch Guys, are enemies that are encountered in Super Mario World 2: Yoshi's Island and its remake Yoshi's Island: Super Mario Advance 3. These variants of Shy Guys are taller and thinner than ordinary Shy Guys. Yoshi cannot defeat them by jumping on them; instead, when jumped on, Stretches get flattened and spit out watermelon seeds. If Yoshi kept at least one of these Shy Guys around, he could easily take out other enemies nearby. They are very rare, and are only encountered in a total of two levels.
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