Big Lantern Ghost
From the Super Mario Wiki
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In battle Mario and his partners should attack the ghost's lantern, which in turn causes the room to brighten. When the room is lit enough that the ghost can be seen, Mario and company can attack him directly. After the ghost is defeated, Mario can shatter the lantern with his Hammer. A Li'l Sparky named Watt will emerge from the lantern. After Mario frees her, Watt becomes Mario's sixth companion.
Super Mario-Kun flavor text
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