This mode pits Samus against 12 bosses in a continuous sequence. Unlocked by clearing the main game once.

: The standout feature is the stealth-action zones where indestructible robots hunt Samus. These encounters provide a unique sense of vulnerability that contrasts with Samus's growing power.

Metroid Dread is an action-adventure game developed by MercurySteam and published by Nintendo. It's the fifth main installment in the Metroid series and takes place after the events of Metroid Fusion. The game follows Samus Aran, the intergalactic bounty hunter, as she explores the planet ZDR, searching for a new threat to the galaxy.

: Defeat as many bosses as possible within a 5-minute time limit . Defeating a boss grants bonus time; taking no damage provides a larger bonus. Unlock: Complete Boss Rush or Dread Rush.

The search terms you provided refer to the v2.1.0 software update Metroid Dread