It looks like Nintendo has put IronFall Invasion back into the 3DS eShop, but this new app has the IronHax exploit patched. If you don't have IronFall Invasion already installed, then this new one won't work with IronHax. If you already have IronFall Invasion and IronHax installed before Nintendo originally took it down, you should be safe. Just avoid any updates. The latest update will replace the full app, and isn't a deletable patch add-on, so once you update you won't be able to go back! (thanks @ihaveamac and @teampleb) Original post: Warning: Spoilers inside! This can be found at Nintendo's service status page: Could Nintendo be planning a patch for IronHax?