The entirety of Boss Attack takes place in a room that uses the same assets as the Core. At the start of the challenge, the player is equipped with the Polar Star and the 290 Counter is activated. The player then navigates Quote around the room and enters through doors to initiate boss fights. A statue of each boss near each door as well as the preamble text when the player interacts with a door indicates the boss that the player will face against. Boss battles retain the same patterns and phases as they do in Story Mode, but the battles take place in rooms that have a different aesthetic than their actual location in the main game.