I discovered a glitch in the current Nintendo Switch build of Rain World that lets you instantly crash the game. If you try to use Passage to return to an area that you have never saved in, the game just crashes.

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In my case, I entered the Garbage Wastes for the first time, died almost immediately, and attempted to use Passage to get back there, without having to get from my previous save point to the place I died.

Oof, be sure to not waste passages, you only get a limited amount per save, and you should use them to quickly make big journeys or if you are entirely stuck