Pokey (Yoshi's Island series)
From the Super Mario Wiki
Pokeys bounce Needlenoses on their heads. If Yoshi defeats the Needlenose, the Pokey frowns and lies down, becoming harmless. However, it produces another Needlenose shortly afterwards. Pokeys cannot be defeated.
This variety of Pokey reappears in Yoshi's New Island, alongside normal Pokeys.
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