do ds games fit switch?
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No you can't. Although both games consoles are cartridge based, they use different sized cartridges, with the Switch's cartridges being more rectangular and the DS/3DS cartridges have a more square shape.
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The 2DS plays all DS and 3DS games, offers a robust design at a low price. Following their tradition of improving the DS hardware every couple of years, Nintendo have just announced a new version of the 3DS. The 2DS is a low cost version of the 3DS and 3DS XL but without the 3D feature or clam shell design.
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Unfortunately, we hate to be the bearer of bad news, but the Nintendo Switch cannot play 3DS games. That goes for physical and digital titles.
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What games play on Switch vs. Switch Lite? As you might expect, all Switch games are compatible with the standard Nintendo Switch. But the Switch Lite is slightly more limited; it only plays Switch games that support handheld mode.
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Compatible games The Nintendo Switch Lite system plays the library of Nintendo Switch games that work in handheld mode.
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Features. The Nintendo DS Lite is compatible with Game Boy Advance and regular DS games. The DS Lite has a DS slot on top and the Game Boy slot on bottom.
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The single-card download feature in Nintendo DS games will work with any combination of Nintendo DS, DS Lite, or Nintendo DSi system, with the following exceptions: Nintendo 3DS games can only connect between Nintendo 3DS family systems. DSiWare or Nintendo DSi games can only connect between Nintendo DSi systems.
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Switch Lite? As you might expect, all Switch games are compatible with the standard Nintendo Switch. But the Switch Lite is slightly more limited; it only plays Switch games that support handheld mode.
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Nintendo 2DS can play all Nintendo 3DS games in 2D, and with an amazing catalogue of Nintendo 3DS games that's growing every month, there's something for everyone to enjoy. Nintendo 2DS is backwards compatible, so you also have the entire library of Nintendo DS games to replay or discover!
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The Nintendo Switch uses cartridges that are officially called Game Card. This iteration is smaller and has a larger storage capacity than its previous versions. Despite its similarities, the Switch is not compatible with DS and 3DS cards.
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Will Nintendo Switch be backward compatible? There's no backward compatibility for Nintendo 3DS or Wii U games, Nintendo confirmed to Polygon — not in terms of using your old physical media on the new system, anyway.
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Does the Nintendo 2DS play Nintendo DS games? Yes. The Nintendo 2DS is backward compatible with the Nintendo DS library.
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Getting back to the main question, both 3DS and DS cartridges are too big to even fit in the Nintendo Switch's cartridge slot, so they will not work.
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Is Nintendo Switch Backwards Compatible? Nintendo answer the question on their website. The video game company says: “The Nintendo Switch console is an all-new way to play, and will not include backwards compatibility.”
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Game Compatibility Nintendo Switch Lite can play the games in the Nintendo Switch library that support handheld mode. For games that do not support handheld mode, players can wirelessly connect compatible controllers (sold separately) to Nintendo Switch Lite.
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The Nintendo Switch system transforms from home console to handheld, letting you play your favorite games at home or on the go. It includes a dock for connecting to your TV, as well as removable Joy-Con™ controllers that you can share with a friend for two-player fun.
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Compatible games The Nintendo Switch Lite comes in four colors: yellow, gray, turquoise, and coral. Link up to eight Nintendo Switch and Nintendo Switch Lite systems together to play multiplayer games anywhere. Team up or face off with others online** in compatible games with a Nintendo Switch Online membership.