multicart

In video game parlance, a multicart is a cartridge that contains more than one game. Although generally associated with pirated Famicom cartridges and systems, there have also been legal multicarts over the years.The emphasis on NES and Famicom multicarts above should not in any way imply that other game consoles have never seen multicarts - this was simply the most prolific platform for these to appear on. Multicarts, both legal and otherwise, have appeared for many cartridge-based systems, among them the Atari 2600, Intellivision, Odyssey 2, Sega Master System, Sega Genesis, Game Boy, and Super NES. In fact, Nintendo's own Mario Party and WarioWare series play a random selection from dozens or hundreds of minigames.
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