First thing. I’ve mentioned this on social media, and I want to spread the word as much as I can about it, because this is going to catch people by surprise, and this way as many will find out about it going in as possible. In addition to costing $450 at launch, $500 with bundled Mario Kart World, and possibly more if Trump’s moronic tariffs stick, as stated in the direct, the Switch 2 uses a special incompatible variant of Micro SD cards, called Micro SD Express.

They’ve been out for a while, but uptake has been slow, mainly because their chief benefit is transfer speed, and Micro SD is fast enough for most purposes. But since its use in the Switch’s has been a performance bottleneck, Nintendo went with SD Express, which has the advantage of being faster, but the disadvantages of being both way less ubiquitous, easy to confuse with normal Micro SD cards, and of course, being more expensive. Ars Technica did a rundown, revealing that Micro SD Express cards are actually more expensive than SSDs at an equivalent price-per-gigabyte. It’s not a proprietary format, but consider that it’s possible that the only SD Express cards you’ll be able to find in a store that you buy your Switch from will be Nintendo-branded, and more expensive, it feels like it effectively is proprietary for now.

How to tell a standard Micro SD card from a Micro SD Express card? Express cards have an EX logo on their label, and they also have more contacts, as shown by this illustration from an SD Association whitepaper:

It’s true the Switch 2 has much more internal storage than the Switch. But many users will also be bringing their Switch digital libraries with them, meaning it’s possible for that storage to be full on day one. I have a 256 SD in my Switch, and I already have to make hard decisions about what I have installed and what I leave in “the cloud.” That will be my reality as soon as I transfer my eShop purchases to the Switch 2.

I mused a bit on Nintendo’s stating that the Switch 2 will be mostly backwards compatible with the Switch 1, meaning, not everything on the original Switch will work with it. What gives?

Nintendo has a page listing games that aren’t Switch 2 compatible. At first glance, it seems that all the issues are with games that are physically incompatible. Like, the Labo VR Kit isn’t compatible, because the Switch 2 is larger than the Switch 1, and it can’t actually fit into the cardboard goggles. Several other Labo kits are similarly “incompatible.” WarioWare Move It is mostly compatible, but the Switch 2 JoyCons don’t have the infrared camera the right JoyCon on the Switch 1 has. You can still pair Switch 1 JoyCons with a Switch 2 though, so if you have them laying around you can still play IR-requiring games. This also affects Game Builder Garage and some Labo titles.

Ring Fit Adventure and Nintendo Switch Sports use accessories that you insert a Switch 1 JoyCon into, and Switch 2 JoyCons won’t fit into them. And 1-2-Switch has a unique issue: the Switch 2 has more subtle rumble, and it seems a 1-2-Switch minigame uses that rumble to communicate information to players, which could end up being an issue.

But… that isn’t the whole story. It turns out there’s a good list of Switch games that have issues on the Switch 2, software issues, but you have to click through to a couple of PDFs to find out about those. Here’s a list of games with “start up issues,” meaning probably they won’t load. And here’s games with issues once they’re running. These lists may shrink over time as bugs are found and stamped out, but that might take a good while; it took years for the Wii-U to run the WiiWare game LostWinds.

Some notable games on the not-starting list: a selection of NeoGeo and Arcade Archives titles, Another Crab’s Treasure, Fornite (although I suspect there will be a Switch 2 native version), Nintendo’s own Fitness Boxing, Doom Eternal, Pizza Tower(!) and River City Girls Zero. Some of the games that play, but with issues: two Tetris The Grand Master games from Arcade Archives, Factorio, Fall Guys, Mega Man Legacy Collection and Stumble Guys.

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