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The Retro Soundbox is an accessory in Paper Mario: The Origami King. It takes on the appearance of a Famicom Disc System controller, and is not available until Mario gets to Shangri-Spa, where it is sold by a resident Snifit. When equipped, this accessory provides no gameplay alterations, but it does change some of Mario's sound effects to their counterparts from old-school Super Mario games, most notably Super Mario Bros.
The sound effects that are changed include:
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