Unlocked by completing the main game on the ultra-hard Dread Mode difficulty.
: The ultimate challenge where a single hit from a boss results in an instant Game Over. This mode is unlocked only after clearing the main game in Dread Mode Practice Mode metroid dread switch nsp xci update 210 es
XCI files are highly popular for preservation because they can "bundle" the base game and updates into a single file. Unlocked by completing the main game on the