Bosses are powerful foes that appear in each stage after Sinking Sands. After you've defeated five enemies (or upon reaching phase three for Resident Mind), there will be a long pause before the boss will spawn. Defeating a boss allows you to move onto the next stage. However, once you defeat Resident Mind, you will be able to complete the game.

Each boss has their own playable character, unlocked through different methods. See Equinox (Host), Bloxxer, Drifter, and Dreamer for more details.

Peacock Peaks, Starling Stacks or Heron Heights

Downcast Days, Sinking Showers or Forest Falls

Mirai Mirror, Midnight Mirror or White Waters

Light Beneath Closed Eyes