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Cactus Jacks are large, spike covered Pokeys with targets on their chests. They are a paler sub-species of Needlenoses. They can only be moved by being shot by a Yoshi Egg. If they come into contact with anything when rolling, they explode and shoot out coins. Cactus Jacks appear in Super Mario World 2: Yoshi's Island, Yoshi's Island: Super Mario Advance 3, and Yoshi's New Island. They are named after politician John "Cactus Jack" Garner.
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